#04152E#04152E

#04152E is a very dark, muted blue. Relative luminance 0.008; OKLCH L 19.8% C 0.056 H 257.0°. Best body text is #FFFFFF at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#04152E
RGB	rgb(4, 21, 46)
HSL	hsl(216, 84%, 10%)
HSV	hsv(216, 91%, 18%)
CMYK	cmyk(91.3%, 54.3%, 0%, 82%)
CIE-LAB	lab(6.86, 3.67, -18.82)
CIE-LCH	lch(6.86, 19.18, 281.02°)
OKLab	oklab(19.77% -0.0125 -0.0543)
OKLCH	oklch(19.77% 0.056 257)
XYZ	xyz(0.8112, 0.7593, 2.6880)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04152E #2E1D04

analogous

#042A2E #04152E #08042E

triadic

#04152E #2E0415 #152E04

tetradic

#04152E #2E042A #2E1D04 #042E08

square

#04152E #2E042A #2E1D04 #042E08

split-complementary

#04152E #2E0804 #2A2E04

monochromatic

#020D1C #020D1C #04152E #092F66 #0E489F

Accessibility & contrast

On white

18.23

#04152E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#04152E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04152E

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04152E	#FFFFFF	#000000	##FFFFFF
##04152E	1.00	18.23	1.15	18.23
#FFFFFF	18.23	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08172F

Deuteranopia (green-blind)

#02132E

Tritanopia (blue-blind)

#001B1F

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #04152e;
/* rgb */ color: rgb(4, 21, 46);
/* oklch */ color: oklch(19.8% 0.056 257.0);

Tailwind

colors: {
  custom: {
    50: '#4a5167',
    500: '#04152e',
    950: '#000000',
  },
}

SCSS

$custom: #04152e;
$custom-light: #4a5167;
$custom-dark: #000000;

JSON

{
  "hex": "#04152e",
  "rgb": {
    "r": 4,
    "g": 21,
    "b": 46
  },
  "hsl": {
    "h": 215.714,
    "s": 84,
    "l": 9.804
  },
  "oklch": {
    "l": 0.19765,
    "c": 0.05568,
    "h": 257
  },
  "luminance": 0.00759
}

Semantic roles & 50–950 ramp

primary

#04152E

secondary

#714F1D

accent

#A72EFA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #04152E

Body copy rendered with the generated semantic roles for this colour.

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