#041F3B#041F3B

#041F3B is a very dark, moderate cyan. Relative luminance 0.013; OKLCH L 23.7% C 0.063 H 252.1°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#041F3B
RGB	rgb(4, 31, 59)
HSL	hsl(211, 87%, 12%)
HSV	hsv(211, 93%, 23%)
CMYK	cmyk(93.2%, 47.5%, 0%, 76.9%)
CIE-LAB	lab(11.42, 2.25, -20.94)
CIE-LCH	lch(11.42, 21.06, 276.15°)
OKLab	oklab(23.67% -0.0193 -0.0599)
OKLCH	oklch(23.67% 0.063 252.1)
XYZ	xyz(1.3292, 1.3214, 4.3218)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#041F3B #3B2004

analogous

#043B3B #041F3B #04043B

triadic

#041F3B #3B041F #1F3B04

tetradic

#041F3B #3B043B #3B2004 #043B04

square

#041F3B #3B043B #3B2004 #043B04

split-complementary

#041F3B #3B0404 #3B3B04

monochromatic

#020F1D #020F1D #041F3B #083D74 #0C5BAE

Accessibility & contrast

On white

16.61

#041F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#041F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #041F3B

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##041F3B	#FFFFFF	#000000	##FFFFFF
##041F3B	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11213C

Deuteranopia (green-blind)

#071C3A

Tritanopia (blue-blind)

#00262A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #041f3b;
/* rgb */ color: rgb(4, 31, 59);
/* oklch */ color: oklch(23.7% 0.063 252.1);

Tailwind

colors: {
  custom: {
    50: '#4e5a71',
    500: '#041f3b',
    950: '#000000',
  },
}

SCSS

$custom: #041f3b;
$custom-light: #4e5a71;
$custom-dark: #000000;

JSON

{
  "hex": "#041f3b",
  "rgb": {
    "r": 4,
    "g": 31,
    "b": 59
  },
  "hsl": {
    "h": 210.545,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.23675,
    "c": 0.06297,
    "h": 252.1
  },
  "luminance": 0.01322
}

Semantic roles & 50–950 ramp

primary

#041F3B

secondary

#7D4E1E

accent

#962AFD

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #041F3B

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

Preview Lab → · Contrast checker → · Palette generator →