#05233B#05233B

#05233B is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.9% C 0.057 H 246.8°. Best body text is #FFFFFF at 16.03:1 contrast (WCAG AA passes).

Color values

HEX	#05233B
RGB	rgb(5, 35, 59)
HSL	hsl(207, 84%, 13%)
HSV	hsv(207, 92%, 23%)
CMYK	cmyk(91.5%, 40.7%, 0%, 76.9%)
CIE-LAB	lab(12.92, -0.58, -18.56)
CIE-LCH	lch(12.92, 18.56, 268.21°)
OKLab	oklab(24.86% -0.0226 -0.0528)
OKLCH	oklch(24.86% 0.057 246.8)
XYZ	xyz(1.4527, 1.5499, 4.3594)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05233B #3B1D05

analogous

#053B38 #05233B #05083B

triadic

#05233B #3B0523 #233B05

tetradic

#05233B #38053B #3B1D05 #083B05

square

#05233B #38053B #3B1D05 #083B05

split-complementary

#05233B #3B0508 #3B3805

monochromatic

#02111C #02111C #05233B #0A4473 #0F66AC

Accessibility & contrast

On white

16.03

#05233B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#05233B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05233B

16.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05233B	#FFFFFF	#000000	##FFFFFF
##05233B	1.00	16.03	1.31	16.03
#FFFFFF	16.03	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18243C

Deuteranopia (green-blind)

#101F3B

Tritanopia (blue-blind)

#00292C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #05233b;
/* rgb */ color: rgb(5, 35, 59);
/* oklch */ color: oklch(24.9% 0.057 246.8);

Tailwind

colors: {
  custom: {
    50: '#4f5d71',
    500: '#05233b',
    950: '#000000',
  },
}

SCSS

$custom: #05233b;
$custom-light: #4f5d71;
$custom-dark: #000000;

JSON

{
  "hex": "#05233b",
  "rgb": {
    "r": 5,
    "g": 35,
    "b": 59
  },
  "hsl": {
    "h": 206.667,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.24861,
    "c": 0.05747,
    "h": 246.8
  },
  "luminance": 0.0155
}

Semantic roles & 50–950 ramp

primary

#05233B

secondary

#7C4920

accent

#882DFB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #05233B

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

Preview Lab → · Contrast checker → · Palette generator →