#04152F#04152F

#04152F is a very dark, muted blue. Relative luminance 0.008; OKLCH L 19.9% C 0.057 H 257.6°. Best body text is #FFFFFF at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#04152F
RGB	rgb(4, 21, 47)
HSL	hsl(216, 84%, 10%)
HSV	hsv(216, 91%, 18%)
CMYK	cmyk(91.5%, 55.3%, 0%, 81.6%)
CIE-LAB	lab(6.93, 4.17, -19.45)
CIE-LCH	lch(6.93, 19.89, 282.10°)
OKLab	oklab(19.85% -0.0123 -0.0561)
OKLCH	oklch(19.85% 0.057 257.6)
XYZ	xyz(0.8311, 0.7673, 2.7931)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04152F #2F1E04

analogous

#042B2F #04152F #08042F

triadic

#04152F #2F0415 #152F04

tetradic

#04152F #2F042B #2F1E04 #042F08

square

#04152F #2F042B #2F1E04 #042F08

split-complementary

#04152F #2F0804 #2B2F04

monochromatic

#020D1C #020D1C #04152F #092E67 #0E47A0

Accessibility & contrast

On white

18.21

#04152F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#04152F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04152F

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04152F	#FFFFFF	#000000	##FFFFFF
##04152F	1.00	18.21	1.15	18.21
#FFFFFF	18.21	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071830

Deuteranopia (green-blind)

#01132E

Tritanopia (blue-blind)

#001B1F

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #04152f;
/* rgb */ color: rgb(4, 21, 47);
/* oklch */ color: oklch(19.9% 0.057 257.6);

Tailwind

colors: {
  custom: {
    50: '#4b5167',
    500: '#04152f',
    950: '#000000',
  },
}

SCSS

$custom: #04152f;
$custom-light: #4b5167;
$custom-dark: #000000;

JSON

{
  "hex": "#04152f",
  "rgb": {
    "r": 4,
    "g": 21,
    "b": 47
  },
  "hsl": {
    "h": 216.279,
    "s": 84.314,
    "l": 10
  },
  "oklch": {
    "l": 0.19852,
    "c": 0.05739,
    "h": 257.6
  },
  "luminance": 0.00767
}

Semantic roles & 50–950 ramp

primary

#04152F

secondary

#72501D

accent

#A92DFB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #04152F

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

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