#04152C#04152C

#04152C is a very dark, muted cyan. Relative luminance 0.007; OKLCH L 19.6% C 0.052 H 255.6°. Best body text is #FFFFFF at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#04152C
RGB	rgb(4, 21, 44)
HSL	hsl(215, 83%, 9%)
HSV	hsv(215, 91%, 17%)
CMYK	cmyk(90.9%, 52.3%, 0%, 82.7%)
CIE-LAB	lab(6.72, 2.69, -17.56)
CIE-LCH	lch(6.72, 17.77, 278.71°)
OKLab	oklab(19.6% -0.013 -0.0506)
OKLCH	oklch(19.6% 0.052 255.6)
XYZ	xyz(0.7727, 0.7439, 2.4852)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04152C #2C1B04

analogous

#04292C #04152C #07042C

triadic

#04152C #2C0415 #152C04

tetradic

#04152C #2C0429 #2C1B04 #042C07

square

#04152C #2C0429 #2C1B04 #042C07

split-complementary

#04152C #2C0704 #292C04

monochromatic

#030D1C #030D1C #04152C #093064 #0E4B9C

Accessibility & contrast

On white

18.28

#04152C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#04152C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04152C

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04152C	#FFFFFF	#000000	##FFFFFF
##04152C	1.00	18.28	1.15	18.28
#FFFFFF	18.28	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A172D

Deuteranopia (green-blind)

#04132C

Tritanopia (blue-blind)

#001A1E

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #04152c;
/* rgb */ color: rgb(4, 21, 44);
/* oklch */ color: oklch(19.6% 0.052 255.6);

Tailwind

colors: {
  custom: {
    50: '#4a5265',
    500: '#04152c',
    950: '#000000',
  },
}

SCSS

$custom: #04152c;
$custom-light: #4a5265;
$custom-dark: #000000;

JSON

{
  "hex": "#04152c",
  "rgb": {
    "r": 4,
    "g": 21,
    "b": 44
  },
  "hsl": {
    "h": 214.5,
    "s": 83.333,
    "l": 9.412
  },
  "oklch": {
    "l": 0.19595,
    "c": 0.05228,
    "h": 255.6
  },
  "luminance": 0.00744
}

Semantic roles & 50–950 ramp

primary

#04152C

secondary

#6F4C1D

accent

#A32EFA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #04152C

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

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