#042340#042340

#042340 is a dark, moderate cyan. Relative luminance 0.016; OKLCH L 25.2% C 0.066 H 250.5°. Best body text is #FFFFFF at 15.91:1 contrast (WCAG AA passes).

Color values

HEX	#042340
RGB	rgb(4, 35, 64)
HSL	hsl(209, 88%, 13%)
HSV	hsv(209, 94%, 25%)
CMYK	cmyk(93.8%, 45.3%, 0%, 74.9%)
CIE-LAB	lab(13.22, 1.57, -21.60)
CIE-LCH	lch(13.22, 21.66, 274.16°)
OKLab	oklab(25.19% -0.0218 -0.0618)
OKLCH	oklch(25.19% 0.066 250.5)
XYZ	xyz(1.5762, 1.5978, 5.0748)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042340 #402104

analogous

#04403F #042340 #040540

triadic

#042340 #400423 #234004

tetradic

#042340 #3F0440 #402104 #054004

square

#042340 #3F0440 #402104 #054004

split-complementary

#042340 #400405 #403F04

monochromatic

#02101D #02101D #042340 #08427A #0B62B3

Accessibility & contrast

On white

15.91

#042340 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#042340 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042340

15.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042340	#FFFFFF	#000000	##FFFFFF
##042340	1.00	15.91	1.32	15.91
#FFFFFF	15.91	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152541

Deuteranopia (green-blind)

#0B203F

Tritanopia (blue-blind)

#002A2E

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #042340;
/* rgb */ color: rgb(4, 35, 64);
/* oklch */ color: oklch(25.2% 0.066 250.5);

Tailwind

colors: {
  custom: {
    50: '#505d75',
    500: '#042340',
    950: '#000000',
  },
}

SCSS

$custom: #042340;
$custom-light: #505d75;
$custom-dark: #000000;

JSON

{
  "hex": "#042340",
  "rgb": {
    "r": 4,
    "g": 35,
    "b": 64
  },
  "hsl": {
    "h": 209,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2519,
    "c": 0.06553,
    "h": 250.5
  },
  "luminance": 0.01598
}

Semantic roles & 50–950 ramp

primary

#042340

secondary

#814E1F

accent

#9029FE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020408

muted

#78797B

Preview Lab

Preview with #042340

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

Preview Lab → · Contrast checker → · Palette generator →