#04233F#04233F

#04233F is a dark, moderate cyan. Relative luminance 0.016; OKLCH L 25.1% C 0.064 H 249.8°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#04233F
RGB	rgb(4, 35, 63)
HSL	hsl(208, 88%, 13%)
HSV	hsv(208, 94%, 25%)
CMYK	cmyk(93.7%, 44.4%, 0%, 75.3%)
CIE-LAB	lab(13.15, 1.10, -21.01)
CIE-LCH	lch(13.15, 21.04, 273.00°)
OKLab	oklab(25.11% -0.0221 -0.06)
OKLCH	oklch(25.11% 0.064 249.8)
XYZ	xyz(1.5480, 1.5866, 4.9263)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04233F #3F2004

analogous

#043F3D #04233F #04053F

triadic

#04233F #3F0423 #233F04

tetradic

#04233F #3D043F #3F2004 #053F04

square

#04233F #3D043F #3F2004 #053F04

split-complementary

#04233F #3F0405 #3F3D04

monochromatic

#02101D #02101D #04233F #084379 #0B63B2

Accessibility & contrast

On white

15.94

#04233F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#04233F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04233F

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04233F	#FFFFFF	#000000	##FFFFFF
##04233F	1.00	15.94	1.32	15.94
#FFFFFF	15.94	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152540

Deuteranopia (green-blind)

#0C1F3E

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #04233f;
/* rgb */ color: rgb(4, 35, 63);
/* oklch */ color: oklch(25.1% 0.064 249.8);

Tailwind

colors: {
  custom: {
    50: '#505d74',
    500: '#04233f',
    950: '#000000',
  },
}

SCSS

$custom: #04233f;
$custom-light: #505d74;
$custom-dark: #000000;

JSON

{
  "hex": "#04233f",
  "rgb": {
    "r": 4,
    "g": 35,
    "b": 63
  },
  "hsl": {
    "h": 208.475,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.25114,
    "c": 0.064,
    "h": 249.8
  },
  "luminance": 0.01587
}

Semantic roles & 50–950 ramp

primary

#04233F

secondary

#804D1E

accent

#8E2AFE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020408

muted

#78797B

Preview Lab

Preview with #04233F

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

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