#042547#042547

#042547 is a dark, moderate cyan. Relative luminance 0.018; OKLCH L 26.3% C 0.074 H 252.8°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#042547
RGB	rgb(4, 37, 71)
HSL	hsl(210, 89%, 15%)
HSV	hsv(210, 94%, 28%)
CMYK	cmyk(94.4%, 47.9%, 0%, 72.2%)
CIE-LAB	lab(14.42, 3.34, -24.54)
CIE-LCH	lch(14.42, 24.76, 277.74°)
OKLab	oklab(26.29% -0.0218 -0.0704)
OKLCH	oklch(26.29% 0.074 252.8)
XYZ	xyz(1.8485, 1.8036, 6.2107)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042547 #472604

analogous

#044747 #042547 #050447

triadic

#042547 #470425 #254704

tetradic

#042547 #470447 #472604 #044705

square

#042547 #470447 #472604 #044705

split-complementary

#042547 #470504 #474704

monochromatic

#020F1D #020F1D #042547 #074381 #0B61BB

Accessibility & contrast

On white

15.43

#042547 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#042547 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042547

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042547	#FFFFFF	#000000	##FFFFFF
##042547	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#132848

Deuteranopia (green-blind)

#072246

Tritanopia (blue-blind)

#002D32

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #042547;
/* rgb */ color: rgb(4, 37, 71);
/* oklch */ color: oklch(26.3% 0.074 252.8);

Tailwind

colors: {
  custom: {
    50: '#525f7a',
    500: '#042547',
    950: '#000000',
  },
}

SCSS

$custom: #042547;
$custom-light: #525f7a;
$custom-dark: #000000;

JSON

{
  "hex": "#042547",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 71
  },
  "hsl": {
    "h": 210.448,
    "s": 89.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.2629,
    "c": 0.07367,
    "h": 252.8
  },
  "luminance": 0.01804
}

Semantic roles & 50–950 ramp

primary

#042547

secondary

#88541F

accent

#9529FF

background

#F4F5F7

surface

#E8E9ED

border

#C4C5C8

text

#030409

muted

#78797B

Preview Lab

Preview with #042547

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

Preview Lab → · Contrast checker → · Palette generator →