#042831#042831

#042831 is a dark, muted cyan. Relative luminance 0.018; OKLCH L 25.7% C 0.043 H 218.4°. Best body text is #FFFFFF at 15.52:1 contrast (WCAG AA passes).

Color values

HEX	#042831
RGB	rgb(4, 40, 49)
HSL	hsl(192, 85%, 10%)
HSV	hsv(192, 92%, 19%)
CMYK	cmyk(91.8%, 18.4%, 0%, 80.8%)
CIE-LAB	lab(14.20, -8.71, -9.48)
CIE-LCH	lch(14.20, 12.87, 227.43°)
OKLab	oklab(25.69% -0.0334 -0.0265)
OKLCH	oklch(25.69% 0.043 218.4)
XYZ	xyz(1.3630, 1.7650, 3.1740)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042831 #310D04

analogous

#043123 #042831 #041131

triadic

#042831 #310428 #283104

tetradic

#042831 #230431 #310D04 #113104

square

#042831 #230431 #310D04 #113104

split-complementary

#042831 #310411 #312304

monochromatic

#02171C #02171C #042831 #09566A #0D84A2

Accessibility & contrast

On white

15.52

#042831 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#042831 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042831

15.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042831	#FFFFFF	#000000	##FFFFFF
##042831	1.00	15.52	1.35	15.52
#FFFFFF	15.52	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#222731

Deuteranopia (green-blind)

#1C2231

Tritanopia (blue-blind)

#002B2B

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #042831;
/* rgb */ color: rgb(4, 40, 49);
/* oklch */ color: oklch(25.7% 0.043 218.4);

Tailwind

colors: {
  custom: {
    50: '#4c6269',
    500: '#042831',
    950: '#000000',
  },
}

SCSS

$custom: #042831;
$custom-light: #4c6269;
$custom-dark: #000000;

JSON

{
  "hex": "#042831",
  "rgb": {
    "r": 4,
    "g": 40,
    "b": 49
  },
  "hsl": {
    "h": 192,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.25685,
    "c": 0.04267,
    "h": 218.4
  },
  "luminance": 0.01765
}

Semantic roles & 50–950 ramp

primary

#042831

secondary

#732F1D

accent

#562DFB

background

#F4F5F6

surface

#E7EAEB

border

#C3C6C6

text

#010506

muted

#77797A

Preview Lab

Preview with #042831

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

Preview Lab → · Contrast checker → · Palette generator →