Sub-Zero
Also known as: Alaskan Blue , Picton Blue , Peaceful River , Blue Iguana
Quietly steady and dependable, Sub-Zero is a cool-toned blue that earns its keep in corporate branding and SaaS products. Sub-Zero plays well with orange tones. The harmonies below show which ones. Accessibility-wise, it needs a dark backdrop: 7.39:1 on black clears AA.
Reference
Sub-Zero color codes
- HEX
- #57A1CE
- RGB
- rgb(87, 161, 206)
- RGBA
- rgba(87, 161, 206, 1)
- HSL
- hsl(203, 55%, 57%)
- HSV
- hsv(203, 58%, 81%)
- CMYK
- cmyk(58%, 22%, 0%, 19%)
- LAB
- lab(62.9 -13.9 -30.6)
- OKLCH
- oklch(67.9% 0.100 237.4)
Analysis
Color intelligence
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Gamut
The full range of colors a device or space can show. sRGB is the common screen gamut; Display P3 is wider. A color outside a gamut cannot be shown accurately there and must be mapped inward.Full glossary entry →Displays accurately on every screen and translates well to print.
Temperature
Undertone
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cool
Nearest standard colors
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →- CSS: dodgerblue #1E90FF · ΔE 8.9
- RAL 5024: Pastel blue #6A93B0 · ΔE 6.3 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck. Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Sub-Zero works
- Web & UI: Best as a button fill, badge, or accent. Pair it with white text only at large sizes, and check contrast.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- Fashion: Wears best as the statement piece, a top, scarf, or shoes, against neutral basics.
- Branding: Sits in the trust register: a natural primary for finance, health, and B2B brands.
- Web & UI: A supporting-cast color for UI: chart fills, tags, and empty-state illustrations, but not text.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Sub-Zero
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →Tints (lighter)
Shades (darker)
Harmonies
Color harmonies
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →Palettes built from Sub-Zero by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Accessibility
Contrast & accessibility
Aa on white
contrast 2.84:1
AA fail AAA fail AA large fail
Aa on black
contrast 7.39:1
AA pass AAA pass AA large pass
Best text color on a Sub-Zero background: #000000
Palettes
Palettes featuring Sub-Zero
Sub-Zero with its complement
Soft neighbors of Sub-Zero
Sub-Zero triad
Explore
Similar colors
- Cousteau #55A9D6 · ΔE 2.6
- High Blue #4CA8E0 · ΔE 2.9
- Blue Burst #309CD0 · ΔE 3.3
- Thalassophile #44AADD · ΔE 3.4
- Windjammer #62A5DF · ΔE 4.0
- Homeworld #2299DD · ΔE 4.8
Looking for maximum contrast instead? The complement of Sub-Zero is closest to Butterum .
FAQ
Sub-Zero FAQs
What color is Sub-Zero?
Sub-Zero is a medium blue with the hex code #57A1CE. In HSL terms it has a hue of 203°, 55% saturation, and 57% lightness.
What is the hex code for Sub-Zero?
The hex code for Sub-Zero is #57A1CE. In RGB it's rgb(87, 161, 206), and in CMYK it's cmyk(58%, 22%, 0%, 19%).
What colors go well with Sub-Zero?
Sub-Zero pairs naturally with orange tones from its complementary harmony, and with pink accents from its split-complementary palette. Its own tints and shades always work as a monochrome scheme.
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