#042129#042129

#042129 is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.1% C 0.037 H 219.6°. Best body text is #FFFFFF at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#042129
RGB	rgb(4, 33, 41)
HSL	hsl(193, 82%, 9%)
HSV	hsv(193, 90%, 16%)
CMYK	cmyk(90.2%, 19.5%, 0%, 83.9%)
CIE-LAB	lab(11.09, -7.42, -8.51)
CIE-LCH	lch(11.09, 11.29, 228.90°)
OKLab	oklab(23.05% -0.0288 -0.0238)
OKLCH	oklch(23.05% 0.037 219.6)
XYZ	xyz(0.9940, 1.2735, 2.2908)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042129 #290C04

analogous

#04291F #042129 #040F29

triadic

#042129 #290421 #212904

tetradic

#042129 #1F0429 #290C04 #0F2904

square

#042129 #1F0429 #290C04 #0F2904

split-complementary

#042129 #29040F #291F04

monochromatic

#03161C #03161C #042129 #094E61 #0F7B99

Accessibility & contrast

On white

16.74

#042129 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#042129 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042129

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042129	#FFFFFF	#000000	##FFFFFF
##042129	1.00	16.74	1.25	16.74
#FFFFFF	16.74	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C2029

Deuteranopia (green-blind)

#171C29

Tritanopia (blue-blind)

#002424

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #042129;
/* rgb */ color: rgb(4, 33, 41);
/* oklch */ color: oklch(23.1% 0.037 219.6);

Tailwind

colors: {
  custom: {
    50: '#4a5c62',
    500: '#042129',
    950: '#000000',
  },
}

SCSS

$custom: #042129;
$custom-light: #4a5c62;
$custom-dark: #000000;

JSON

{
  "hex": "#042129",
  "rgb": {
    "r": 4,
    "g": 33,
    "b": 41
  },
  "hsl": {
    "h": 192.973,
    "s": 82.222,
    "l": 8.824
  },
  "oklch": {
    "l": 0.23052,
    "c": 0.03733,
    "h": 219.6
  },
  "luminance": 0.01274
}

Semantic roles & 50–950 ramp

primary

#042129

secondary

#6C2E1D

accent

#5B2FF9

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010405

muted

#777979

Preview Lab

Preview with #042129

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

Preview Lab → · Contrast checker → · Palette generator →