#04192F#04192F

#04192F is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 21.0% C 0.052 H 251.3°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#04192F
RGB	rgb(4, 25, 47)
HSL	hsl(211, 84%, 10%)
HSV	hsv(211, 91%, 18%)
CMYK	cmyk(91.5%, 46.8%, 0%, 81.6%)
CIE-LAB	lab(8.36, 1.19, -17.17)
CIE-LCH	lch(8.36, 17.21, 273.97°)
OKLab	oklab(21% -0.0166 -0.049)
OKLCH	oklch(21% 0.052 251.3)
XYZ	xyz(0.9106, 0.9262, 2.8196)
Luminance	0.0093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04192F #2F1A04

analogous

#042E2F #04192F #05042F

triadic

#04192F #2F0419 #192F04

tetradic

#04192F #2F042E #2F1A04 #042F05

square

#04192F #2F042E #2F1A04 #042F05

split-complementary

#04192F #2F0504 #2E2F04

monochromatic

#020F1C #020F1C #04192F #093767 #0E55A0

Accessibility & contrast

On white

17.72

#04192F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#04192F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04192F

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04192F	#FFFFFF	#000000	##FFFFFF
##04192F	1.00	17.72	1.19	17.72
#FFFFFF	17.72	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F1A30

Deuteranopia (green-blind)

#08162F

Tritanopia (blue-blind)

#001E21

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #04192f;
/* rgb */ color: rgb(4, 25, 47);
/* oklch */ color: oklch(21.0% 0.052 251.3);

Tailwind

colors: {
  custom: {
    50: '#4b5567',
    500: '#04192f',
    950: '#000000',
  },
}

SCSS

$custom: #04192f;
$custom-light: #4b5567;
$custom-dark: #000000;

JSON

{
  "hex": "#04192f",
  "rgb": {
    "r": 4,
    "g": 25,
    "b": 47
  },
  "hsl": {
    "h": 210.698,
    "s": 84.314,
    "l": 10
  },
  "oklch": {
    "l": 0.21004,
    "c": 0.05173,
    "h": 251.3
  },
  "luminance": 0.00926
}

Semantic roles & 50–950 ramp

primary

#04192F

secondary

#72481D

accent

#962DFB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #04192F

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

Preview Lab → · Contrast checker → · Palette generator →