#043039#043039

#043039 is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.6% C 0.048 H 215.2°. Best body text is #FFFFFF at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#043039
RGB	rgb(4, 48, 57)
HSL	hsl(190, 87%, 12%)
HSV	hsv(190, 93%, 22%)
CMYK	cmyk(93%, 15.8%, 0%, 77.6%)
CIE-LAB	lab(17.62, -10.54, -9.84)
CIE-LCH	lch(17.62, 14.42, 223.02°)
OKLab	oklab(28.56% -0.0389 -0.0275)
OKLCH	oklch(28.56% 0.048 215.2)
XYZ	xyz(1.8452, 2.4349, 4.2428)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043039 #390D04

analogous

#043928 #043039 #041639

triadic

#043039 #390430 #303904

tetradic

#043039 #280439 #390D04 #163904

square

#043039 #280439 #390D04 #163904

split-complementary

#043039 #390416 #392804

monochromatic

#02181D #02181D #043039 #086072 #0C90AB

Accessibility & contrast

On white

14.12

#043039 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#043039 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043039

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043039	#FFFFFF	#000000	##FFFFFF
##043039	1.00	14.12	1.49	14.12
#FFFFFF	14.12	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2E3A

Deuteranopia (green-blind)

#232939

Tritanopia (blue-blind)

#003333

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #043039;
/* rgb */ color: rgb(4, 48, 57);
/* oklch */ color: oklch(28.6% 0.048 215.2);

Tailwind

colors: {
  custom: {
    50: '#4f686f',
    500: '#043039',
    950: '#000000',
  },
}

SCSS

$custom: #043039;
$custom-light: #4f686f;
$custom-dark: #000000;

JSON

{
  "hex": "#043039",
  "rgb": {
    "r": 4,
    "g": 48,
    "b": 57
  },
  "hsl": {
    "h": 190.189,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.28564,
    "c": 0.04766,
    "h": 215.2
  },
  "luminance": 0.02435
}

Semantic roles & 50–950 ramp

primary

#043039

secondary

#7B2E1E

accent

#4E2BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #043039

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

Preview Lab → · Contrast checker → · Palette generator →