#04172E#04172E

#04172E is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.3% C 0.053 H 253.9°. Best body text is #FFFFFF at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#04172E
RGB	rgb(4, 23, 46)
HSL	hsl(213, 84%, 10%)
HSV	hsv(213, 91%, 18%)
CMYK	cmyk(91.3%, 50%, 0%, 82%)
CIE-LAB	lab(7.55, 2.25, -17.72)
CIE-LCH	lch(7.55, 17.87, 277.24°)
OKLab	oklab(20.34% -0.0147 -0.0507)
OKLCH	oklch(20.34% 0.053 253.9)
XYZ	xyz(0.8494, 0.8358, 2.7008)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04172E #2E1B04

analogous

#042C2E #04172E #06042E

triadic

#04172E #2E0417 #172E04

tetradic

#04172E #2E042C #2E1B04 #042E06

square

#04172E #2E042C #2E1B04 #042E06

split-complementary

#04172E #2E0604 #2C2E04

monochromatic

#020E1C #020E1C #04172E #093366 #0E4F9F

Accessibility & contrast

On white

17.99

#04172E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#04172E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04172E

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04172E	#FFFFFF	#000000	##FFFFFF
##04172E	1.00	17.99	1.17	17.99
#FFFFFF	17.99	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C192F

Deuteranopia (green-blind)

#05152E

Tritanopia (blue-blind)

#001C20

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #04172e;
/* rgb */ color: rgb(4, 23, 46);
/* oklch */ color: oklch(20.3% 0.053 253.9);

Tailwind

colors: {
  custom: {
    50: '#4b5367',
    500: '#04172e',
    950: '#000000',
  },
}

SCSS

$custom: #04172e;
$custom-light: #4b5367;
$custom-dark: #000000;

JSON

{
  "hex": "#04172e",
  "rgb": {
    "r": 4,
    "g": 23,
    "b": 46
  },
  "hsl": {
    "h": 212.857,
    "s": 84,
    "l": 9.804
  },
  "oklch": {
    "l": 0.2034,
    "c": 0.0528,
    "h": 253.9
  },
  "luminance": 0.00836
}

Semantic roles & 50–950 ramp

primary

#04172E

secondary

#714B1D

accent

#9E2EFA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #04172E

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

Preview Lab → · Contrast checker → · Palette generator →