#042A40#042A40

#042A40 is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.2% C 0.058 H 239.8°. Best body text is #FFFFFF at 14.89:1 contrast (WCAG AA passes).

Color values

HEX	#042A40
RGB	rgb(4, 42, 64)
HSL	hsl(202, 88%, 13%)
HSV	hsv(202, 94%, 25%)
CMYK	cmyk(93.8%, 34.4%, 0%, 74.9%)
CIE-LAB	lab(15.76, -3.53, -17.58)
CIE-LCH	lch(15.76, 17.93, 258.65°)
OKLab	oklab(27.19% -0.0291 -0.0499)
OKLCH	oklch(27.19% 0.058 239.8)
XYZ	xyz(1.8031, 2.0517, 5.1505)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042A40 #401A04

analogous

#044038 #042A40 #040C40

triadic

#042A40 #40042A #2A4004

tetradic

#042A40 #380440 #401A04 #0C4004

square

#042A40 #380440 #401A04 #0C4004

split-complementary

#042A40 #40040C #403804

monochromatic

#02131D #02131D #042A40 #08507A #0B76B3

Accessibility & contrast

On white

14.89

#042A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#042A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042A40

14.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042A40	#FFFFFF	#000000	##FFFFFF
##042A40	1.00	14.89	1.41	14.89
#FFFFFF	14.89	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F2A41

Deuteranopia (green-blind)

#172540

Tritanopia (blue-blind)

#003032

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #042a40;
/* rgb */ color: rgb(4, 42, 64);
/* oklch */ color: oklch(27.2% 0.058 239.8);

Tailwind

colors: {
  custom: {
    50: '#506375',
    500: '#042a40',
    950: '#000000',
  },
}

SCSS

$custom: #042a40;
$custom-light: #506375;
$custom-dark: #000000;

JSON

{
  "hex": "#042a40",
  "rgb": {
    "r": 4,
    "g": 42,
    "b": 64
  },
  "hsl": {
    "h": 202,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.27192,
    "c": 0.05772,
    "h": 239.8
  },
  "luminance": 0.02052
}

Semantic roles & 50–950 ramp

primary

#042A40

secondary

#81431F

accent

#7829FE

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#020508

muted

#78797B

Preview Lab

Preview with #042A40

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

Preview Lab → · Contrast checker → · Palette generator →