#042731#042731

#042731 is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.4% C 0.043 H 221.2°. Best body text is #FFFFFF at 15.67:1 contrast (WCAG AA passes).

Color values

HEX	#042731
RGB	rgb(4, 39, 49)
HSL	hsl(193, 85%, 10%)
HSV	hsv(193, 92%, 19%)
CMYK	cmyk(91.8%, 20.4%, 0%, 80.8%)
CIE-LAB	lab(13.82, -8.05, -10.07)
CIE-LCH	lch(13.82, 12.89, 231.38°)
OKLab	oklab(25.38% -0.0322 -0.0282)
OKLCH	oklch(25.38% 0.043 221.2)
XYZ	xyz(1.3297, 1.6984, 3.1629)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042731 #310E04

analogous

#043124 #042731 #041031

triadic

#042731 #310427 #273104

tetradic

#042731 #240431 #310E04 #103104

square

#042731 #240431 #310E04 #103104

split-complementary

#042731 #310410 #312404

monochromatic

#02171C #02171C #042731 #09546A #0D81A2

Accessibility & contrast

On white

15.67

#042731 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#042731 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042731

15.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042731	#FFFFFF	#000000	##FFFFFF
##042731	1.00	15.67	1.34	15.67
#FFFFFF	15.67	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212632

Deuteranopia (green-blind)

#1B2131

Tritanopia (blue-blind)

#002A2A

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #042731;
/* rgb */ color: rgb(4, 39, 49);
/* oklch */ color: oklch(25.4% 0.043 221.2);

Tailwind

colors: {
  custom: {
    50: '#4c6169',
    500: '#042731',
    950: '#000000',
  },
}

SCSS

$custom: #042731;
$custom-light: #4c6169;
$custom-dark: #000000;

JSON

{
  "hex": "#042731",
  "rgb": {
    "r": 4,
    "g": 39,
    "b": 49
  },
  "hsl": {
    "h": 193.333,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.25376,
    "c": 0.04282,
    "h": 221.2
  },
  "luminance": 0.01699
}

Semantic roles & 50–950 ramp

primary

#042731

secondary

#73301D

accent

#5B2DFB

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010506

muted

#77797A

Preview Lab

Preview with #042731

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

Preview Lab → · Contrast checker → · Palette generator →