#04273A#04273A

#04273A is a dark, muted cyan. Relative luminance 0.018; OKLCH L 25.9% C 0.053 H 237.6°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#04273A
RGB	rgb(4, 39, 58)
HSL	hsl(201, 87%, 12%)
HSV	hsv(201, 93%, 23%)
CMYK	cmyk(93.1%, 32.8%, 0%, 77.3%)
CIE-LAB	lab(14.30, -4.11, -15.68)
CIE-LCH	lch(14.30, 16.21, 255.32°)
OKLab	oklab(25.92% -0.0282 -0.0444)
OKLCH	oklch(25.92% 0.053 237.6)
XYZ	xyz(1.5390, 1.7821, 4.2650)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04273A #3A1704

analogous

#043A32 #04273A #040C3A

triadic

#04273A #3A0427 #273A04

tetradic

#04273A #32043A #3A1704 #0C3A04

square

#04273A #32043A #3A1704 #0C3A04

split-complementary

#04273A #3A040C #3A3204

monochromatic

#02131D #02131D #04273A #084D73 #0C74AD

Accessibility & contrast

On white

15.48

#04273A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#04273A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04273A

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04273A	#FFFFFF	#000000	##FFFFFF
##04273A	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E273B

Deuteranopia (green-blind)

#16223A

Tritanopia (blue-blind)

#002C2E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #04273a;
/* rgb */ color: rgb(4, 39, 58);
/* oklch */ color: oklch(25.9% 0.053 237.6);

Tailwind

colors: {
  custom: {
    50: '#4e6070',
    500: '#04273a',
    950: '#000000',
  },
}

SCSS

$custom: #04273a;
$custom-light: #4e6070;
$custom-dark: #000000;

JSON

{
  "hex": "#04273a",
  "rgb": {
    "r": 4,
    "g": 39,
    "b": 58
  },
  "hsl": {
    "h": 201.111,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.2592,
    "c": 0.05258,
    "h": 237.6
  },
  "luminance": 0.01782
}

Semantic roles & 50–950 ramp

primary

#04273A

secondary

#7C3F1E

accent

#752BFD

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #04273A

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

Preview Lab → · Contrast checker → · Palette generator →