#04182E#04182E

#04182E is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 20.6% C 0.051 H 252.1°. Best body text is #FFFFFF at 17.87:1 contrast (WCAG AA passes).

Color values

HEX	#04182E
RGB	rgb(4, 24, 46)
HSL	hsl(211, 84%, 10%)
HSV	hsv(211, 91%, 18%)
CMYK	cmyk(91.3%, 47.8%, 0%, 82%)
CIE-LAB	lab(7.91, 1.50, -17.14)
CIE-LCH	lch(7.91, 17.21, 275.00°)
OKLab	oklab(20.63% -0.0158 -0.0489)
OKLCH	oklch(20.63% 0.051 252.1)
XYZ	xyz(0.8697, 0.8762, 2.7075)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04182E #2E1A04

analogous

#042D2E #04182E #05042E

triadic

#04182E #2E0418 #182E04

tetradic

#04182E #2E042D #2E1A04 #042E05

square

#04182E #2E042D #2E1A04 #042E05

split-complementary

#04182E #2E0504 #2D2E04

monochromatic

#020F1C #020F1C #04182E #093566 #0E539F

Accessibility & contrast

On white

17.87

#04182E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#04182E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04182E

17.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04182E	#FFFFFF	#000000	##FFFFFF
##04182E	1.00	17.87	1.18	17.87
#FFFFFF	17.87	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1A2F

Deuteranopia (green-blind)

#07162E

Tritanopia (blue-blind)

#001D20

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #04182e;
/* rgb */ color: rgb(4, 24, 46);
/* oklch */ color: oklch(20.6% 0.051 252.1);

Tailwind

colors: {
  custom: {
    50: '#4b5467',
    500: '#04182e',
    950: '#000000',
  },
}

SCSS

$custom: #04182e;
$custom-light: #4b5467;
$custom-dark: #000000;

JSON

{
  "hex": "#04182e",
  "rgb": {
    "r": 4,
    "g": 24,
    "b": 46
  },
  "hsl": {
    "h": 211.429,
    "s": 84,
    "l": 9.804
  },
  "oklch": {
    "l": 0.20632,
    "c": 0.05143,
    "h": 252.1
  },
  "luminance": 0.00876
}

Semantic roles & 50–950 ramp

primary

#04182E

secondary

#71491D

accent

#992EFA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #04182E

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

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