#04203B#04203B

#04203B is a very dark, moderate cyan. Relative luminance 0.014; OKLCH L 24.0% C 0.062 H 250.7°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#04203B
RGB	rgb(4, 32, 59)
HSL	hsl(209, 87%, 12%)
HSV	hsv(209, 93%, 23%)
CMYK	cmyk(93.2%, 45.8%, 0%, 76.9%)
CIE-LAB	lab(11.79, 1.49, -20.36)
CIE-LCH	lch(11.79, 20.42, 274.19°)
OKLab	oklab(23.96% -0.0203 -0.0582)
OKLCH	oklch(23.96% 0.062 250.7)
XYZ	xyz(1.3557, 1.3744, 4.3307)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04203B #3B1F04

analogous

#043B3B #04203B #04043B

triadic

#04203B #3B0420 #203B04

tetradic

#04203B #3B043B #3B1F04 #043B04

square

#04203B #3B043B #3B1F04 #043B04

split-complementary

#04203B #3B0404 #3B3B04

monochromatic

#02101D #02101D #04203B #083F74 #0C5EAE

Accessibility & contrast

On white

16.47

#04203B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#04203B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04203B

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04203B	#FFFFFF	#000000	##FFFFFF
##04203B	1.00	16.47	1.27	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13223C

Deuteranopia (green-blind)

#0A1D3A

Tritanopia (blue-blind)

#00262A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #04203b;
/* rgb */ color: rgb(4, 32, 59);
/* oklch */ color: oklch(24.0% 0.062 250.7);

Tailwind

colors: {
  custom: {
    50: '#4e5b71',
    500: '#04203b',
    950: '#000000',
  },
}

SCSS

$custom: #04203b;
$custom-light: #4e5b71;
$custom-dark: #000000;

JSON

{
  "hex": "#04203b",
  "rgb": {
    "r": 4,
    "g": 32,
    "b": 59
  },
  "hsl": {
    "h": 209.455,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.23958,
    "c": 0.06166,
    "h": 250.7
  },
  "luminance": 0.01375
}

Semantic roles & 50–950 ramp

primary

#04203B

secondary

#7D4D1E

accent

#922AFD

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #04203B

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

Preview Lab → · Contrast checker → · Palette generator →