#011F2B#011F2B

#011F2B is a very dark, muted cyan. Relative luminance 0.012; OKLCH L 22.4% C 0.042 H 228.3°. Best body text is #FFFFFF at 17.04:1 contrast (WCAG AA passes).

Color values

HEX	#011F2B
RGB	rgb(1, 31, 43)
HSL	hsl(197, 95%, 9%)
HSV	hsv(197, 98%, 17%)
CMYK	cmyk(97.7%, 27.9%, 0%, 83.1%)
CIE-LAB	lab(10.26, -5.94, -11.25)
CIE-LCH	lch(10.26, 12.73, 242.16°)
OKLab	oklab(22.38% -0.0282 -0.0317)
OKLCH	oklch(22.38% 0.042 228.3)
XYZ	xyz(0.9384, 1.1607, 2.4596)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#011F2B #2B0D01

analogous

#012B22 #011F2B #010A2B

triadic

#011F2B #2B011F #1F2B01

tetradic

#011F2B #22012B #2B0D01 #0A2B01

square

#011F2B #22012B #2B0D01 #0A2B01

split-complementary

#011F2B #2B010A #2B2201

monochromatic

#01161E #01161E #011F2B #024A67 #0475A3

Accessibility & contrast

On white

17.04

#011F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#011F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #011F2B

17.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##011F2B	#FFFFFF	#000000	##FFFFFF
##011F2B	1.00	17.04	1.23	17.04
#FFFFFF	17.04	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191E2C

Deuteranopia (green-blind)

#131A2B

Tritanopia (blue-blind)

#002223

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #011f2b;
/* rgb */ color: rgb(1, 31, 43);
/* oklch */ color: oklch(22.4% 0.042 228.3);

Tailwind

colors: {
  custom: {
    50: '#495a64',
    500: '#011f2b',
    950: '#000000',
  },
}

SCSS

$custom: #011f2b;
$custom-light: #495a64;
$custom-dark: #000000;

JSON

{
  "hex": "#011f2b",
  "rgb": {
    "r": 1,
    "g": 31,
    "b": 43
  },
  "hsl": {
    "h": 197.143,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.22384,
    "c": 0.04248,
    "h": 228.3
  },
  "luminance": 0.01161
}

Semantic roles & 50–950 ramp

primary

#011F2B

secondary

#713017

accent

#6629FF

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010305

muted

#777879

Preview Lab

Preview with #011F2B

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

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