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Color reference#00030ENear-black with a faint cyan-blue bias

Color reference

Near-black with a faint cyan-blue bias

RGB
rgb(0 3 14)
HSL
hsl(227 100% 3%)
HWB
hwb(227 0% 95%)
Color family
Blue
Recommended foreground
#FFFFFF

Calculated profile

What the numbers say

At 227° hue, Near-black with a faint cyan-blue bias is a high-saturation, very dark, cool-hue sRGB color. Its relative luminance is 0.10%. For text on this background, #FFFFFF produces the stronger contrast at 20.60:1.

HSL lightness
3%
HSL saturation
100%
Relative luminance
0.10%
Hue group
cool-hue

02

Copy-ready color formats

Equivalent sRGB notations calculated from the same six-digit HEX value.

03

Text contrast against this color

Ratios use WCAG relative luminance. Passing a ratio does not by itself certify an interface.

White text20.60:1

Aa

AA normal text
Pass
AA large text
Pass
AAA normal text
Pass
AAA large text
Pass
Black text1.02:1

Aa

AA normal text
Fail
AA large text
Fail
AAA normal text
Fail
AAA large text
Fail

04

Calculated tints and shades

Tints mix the color with white; shades mix it with black in sRGB.

Tints

Shades

05

Hue-wheel relationships

These colors keep the original HSL saturation and lightness while rotating hue. They are mathematical starting points, not automatic design recommendations.

06

Opacity variants

Eight-digit HEX and modern rgb() alpha syntax for the same opacity.

20%
40%
60%
80%

07

CSS starter

A small custom-property block using the calculated foreground with the stronger black-or-white contrast.

--color-hex-00030e: #00030E;
--color-hex-00030e-rgb: 0 3 14;
--color-hex-00030e-hsl: 227 100% 3%;
color: #FFFFFF;
background-color: var(--color-hex-00030e);

Community review

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08 / Verification

Where the values come from

The color name and HEX value are checked against the cited standard. RGB, HSL, HWB, luminance, and contrast are then calculated from that HEX value using published formulas.

Source for the name and HEX: W3C CSS Color 4 predefined sRGB value

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