#041B2B#041B2B

#041B2B is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.3% C 0.043 H 241.9°. Best body text is #FFFFFF at 17.55:1 contrast (WCAG AA passes).

Color values

HEX	#041B2B
RGB	rgb(4, 27, 43)
HSL	hsl(205, 83%, 9%)
HSV	hsv(205, 91%, 17%)
CMYK	cmyk(90.7%, 37.2%, 0%, 83.1%)
CIE-LAB	lab(8.86, -2.24, -13.44)
CIE-LCH	lch(8.86, 13.63, 260.55°)
OKLab	oklab(21.31% -0.0204 -0.0381)
OKLCH	oklch(21.31% 0.043 241.9)
XYZ	xyz(0.8779, 0.9840, 2.4287)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#041B2B #2B1404

analogous

#042B28 #041B2B #04082B

triadic

#041B2B #2B041B #1B2B04

tetradic

#041B2B #28042B #2B1404 #082B04

square

#041B2B #28042B #2B1404 #082B04

split-complementary

#041B2B #2B0408 #2B2804

monochromatic

#03121C #03121C #041B2B #093E63 #0E619B

Accessibility & contrast

On white

17.55

#041B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#041B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #041B2B

17.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##041B2B	#FFFFFF	#000000	##FFFFFF
##041B2B	1.00	17.55	1.20	17.55
#FFFFFF	17.55	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141B2C

Deuteranopia (green-blind)

#0E182B

Tritanopia (blue-blind)

#001F21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #041b2b;
/* rgb */ color: rgb(4, 27, 43);
/* oklch */ color: oklch(21.3% 0.043 241.9);

Tailwind

colors: {
  custom: {
    50: '#4a5764',
    500: '#041b2b',
    950: '#000000',
  },
}

SCSS

$custom: #041b2b;
$custom-light: #4a5764;
$custom-dark: #000000;

JSON

{
  "hex": "#041b2b",
  "rgb": {
    "r": 4,
    "g": 27,
    "b": 43
  },
  "hsl": {
    "h": 204.615,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.21308,
    "c": 0.04318,
    "h": 241.9
  },
  "luminance": 0.00984
}

Semantic roles & 50–950 ramp

primary

#041B2B

secondary

#6E3E1D

accent

#822EF9

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010305

muted

#77787A

Preview Lab

Preview with #041B2B

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

Preview Lab → · Contrast checker → · Palette generator →