#042E3B#042E3B

#042E3B is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.1% C 0.049 H 223.9°. Best body text is #FFFFFF at 14.39:1 contrast (WCAG AA passes).

Color values

HEX	#042E3B
RGB	rgb(4, 46, 59)
HSL	hsl(194, 87%, 12%)
HSV	hsv(194, 93%, 23%)
CMYK	cmyk(93.2%, 22%, 0%, 76.9%)
CIE-LAB	lab(16.97, -8.42, -12.23)
CIE-LCH	lch(16.97, 14.85, 235.44°)
OKLab	oklab(28.07% -0.0356 -0.0343)
OKLCH	oklch(28.07% 0.049 223.9)
XYZ	xyz(1.8162, 2.2953, 4.4841)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042E3B #3B1104

analogous

#043B2D #042E3B #04123B

triadic

#042E3B #3B042E #2E3B04

tetradic

#042E3B #2D043B #3B1104 #123B04

square

#042E3B #2D043B #3B1104 #123B04

split-complementary

#042E3B #3B0412 #3B2D04

monochromatic

#02161D #02161D #042E3B #085B74 #0C87AE

Accessibility & contrast

On white

14.39

#042E3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#042E3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042E3B

14.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042E3B	#FFFFFF	#000000	##FFFFFF
##042E3B	1.00	14.39	1.46	14.39
#FFFFFF	14.39	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272D3C

Deuteranopia (green-blind)

#1F283B

Tritanopia (blue-blind)

#003232

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #042e3b;
/* rgb */ color: rgb(4, 46, 59);
/* oklch */ color: oklch(28.1% 0.049 223.9);

Tailwind

colors: {
  custom: {
    50: '#4f6671',
    500: '#042e3b',
    950: '#000000',
  },
}

SCSS

$custom: #042e3b;
$custom-light: #4f6671;
$custom-dark: #000000;

JSON

{
  "hex": "#042e3b",
  "rgb": {
    "r": 4,
    "g": 46,
    "b": 59
  },
  "hsl": {
    "h": 194.182,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.28069,
    "c": 0.04949,
    "h": 223.9
  },
  "luminance": 0.02296
}

Semantic roles & 50–950 ramp

primary

#042E3B

secondary

#7D341E

accent

#5C2AFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #042E3B

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

Preview Lab → · Contrast checker → · Palette generator →