#04121C#04121C

#04121C is a very dark, muted cyan. Relative luminance 0.005; OKLCH L 17.5% C 0.030 H 239.7°. Best body text is #FFFFFF at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#04121C
RGB	rgb(4, 18, 28)
HSL	hsl(205, 75%, 6%)
HSV	hsv(205, 86%, 11%)
CMYK	cmyk(85.7%, 35.7%, 0%, 89%)
CIE-LAB	lab(4.90, -1.62, -8.20)
CIE-LCH	lch(4.90, 8.36, 258.86°)
OKLab	oklab(17.46% -0.015 -0.0256)
OKLCH	oklch(17.46% 0.03 239.7)
XYZ	xyz(0.4759, 0.5422, 1.1780)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04121C #1C0E04

analogous

#041C1A #04121C #04061C

triadic

#04121C #1C0412 #121C04

tetradic

#04121C #1A041C #1C0E04 #061C04

square

#04121C #1A041C #1C0E04 #061C04

split-complementary

#04121C #1C0406 #1C1A04

monochromatic

#04111B #04111B #04121C #0C3452 #135787

Accessibility & contrast

On white

18.95

#04121C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#04121C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04121C

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04121C	#FFFFFF	#000000	##FFFFFF
##04121C	1.00	18.95	1.11	18.95
#FFFFFF	18.95	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D121C

Deuteranopia (green-blind)

#0A0F1C

Tritanopia (blue-blind)

#001515

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #04121c;
/* rgb */ color: rgb(4, 18, 28);
/* oklch */ color: oklch(17.5% 0.030 239.7);

Tailwind

colors: {
  custom: {
    50: '#485058',
    500: '#04121c',
    950: '#000000',
  },
}

SCSS

$custom: #04121c;
$custom-light: #485058;
$custom-dark: #000000;

JSON

{
  "hex": "#04121c",
  "rgb": {
    "r": 4,
    "g": 18,
    "b": 28
  },
  "hsl": {
    "h": 205,
    "s": 75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.1746,
    "c": 0.02965,
    "h": 239.7
  },
  "luminance": 0.00542
}

Semantic roles & 50–950 ramp

primary

#04121C

secondary

#5E381D

accent

#8436F2

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000203

muted

#777878

Preview Lab

Preview with #04121C

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

Preview Lab → · Contrast checker → · Palette generator →