#042040#042040

#042040 is a very dark, moderate cyan. Relative luminance 0.014; OKLCH L 24.4% C 0.070 H 254.2°. Best body text is #FFFFFF at 16.33:1 contrast (WCAG AA passes).

Color values

HEX	#042040
RGB	rgb(4, 32, 64)
HSL	hsl(212, 88%, 13%)
HSV	hsv(212, 94%, 25%)
CMYK	cmyk(93.8%, 50%, 0%, 74.9%)
CIE-LAB	lab(12.15, 3.85, -23.31)
CIE-LCH	lch(12.15, 23.63, 279.39°)
OKLab	oklab(24.36% -0.019 -0.0669)
OKLCH	oklch(24.36% 0.07 254.2)
XYZ	xyz(1.4916, 1.4288, 5.0467)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042040 #402404

analogous

#043E40 #042040 #060440

triadic

#042040 #400420 #204004

tetradic

#042040 #40043E #402404 #044006

square

#042040 #40043E #402404 #044006

split-complementary

#042040 #400604 #3E4004

monochromatic

#020E1D #020E1D #042040 #083D7A #0B5AB3

Accessibility & contrast

On white

16.33

#042040 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#042040 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042040

16.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042040	#FFFFFF	#000000	##FFFFFF
##042040	1.00	16.33	1.29	16.33
#FFFFFF	16.33	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F2341

Deuteranopia (green-blind)

#041D3F

Tritanopia (blue-blind)

#00282C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #042040;
/* rgb */ color: rgb(4, 32, 64);
/* oklch */ color: oklch(24.4% 0.070 254.2);

Tailwind

colors: {
  custom: {
    50: '#505a75',
    500: '#042040',
    950: '#000000',
  },
}

SCSS

$custom: #042040;
$custom-light: #505a75;
$custom-dark: #000000;

JSON

{
  "hex": "#042040",
  "rgb": {
    "r": 4,
    "g": 32,
    "b": 64
  },
  "hsl": {
    "h": 212,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24357,
    "c": 0.06952,
    "h": 254.2
  },
  "luminance": 0.01429
}

Semantic roles & 50–950 ramp

primary

#042040

secondary

#81531F

accent

#9B29FE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020308

muted

#78787B

Preview Lab

Preview with #042040

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

Preview Lab → · Contrast checker → · Palette generator →