#04031E#04031E

#04031E is a very dark, muted blue. Relative luminance 0.002; OKLCH L 12.8% C 0.060 H 276.7°. Best body text is #FFFFFF at 20.25:1 contrast (WCAG AA passes).

Color values

HEX	#04031E
RGB	rgb(4, 3, 30)
HSL	hsl(242, 82%, 6%)
HSV	hsv(242, 90%, 12%)
CMYK	cmyk(86.7%, 90%, 0%, 88.2%)
CIE-LAB	lab(1.67, 5.79, -14.62)
CIE-LCH	lch(1.67, 15.73, 291.62°)
OKLab	oklab(12.84% 0.0069 -0.0593)
OKLCH	oklch(12.84% 0.06 276.7)
XYZ	xyz(0.3169, 0.1846, 1.2470)
Luminance	0.0019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.86

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04031E #1D1E03

analogous

#03101E #04031E #12031E

triadic

#04031E #1E0403 #031E04

tetradic

#04031E #1E0310 #1D1E03 #031E12

square

#04031E #1E0310 #1D1E03 #031E12

split-complementary

#04031E #1E1203 #101E03

monochromatic

#04031C #04031C #04031E #0B0956 #130E8D

Accessibility & contrast

On white

20.25

#04031E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#04031E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04031E

20.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04031E	#FFFFFF	#000000	##FFFFFF
##04031E	1.00	20.25	1.04	20.25
#FFFFFF	20.25	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00071F

Deuteranopia (green-blind)

#00051D

Tritanopia (blue-blind)

#00090E

Achromatopsia (no color)

#060606

Design tokens & code

CSS

--color: #04031e;
/* rgb */ color: rgb(4, 3, 30);
/* oklch */ color: oklch(12.8% 0.060 276.7);

Tailwind

colors: {
  custom: {
    50: '#484859',
    500: '#04031e',
    950: '#000000',
  },
}

SCSS

$custom: #04031e;
$custom-light: #484859;
$custom-dark: #000000;

JSON

{
  "hex": "#04031e",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 30
  },
  "hsl": {
    "h": 242.222,
    "s": 81.818,
    "l": 6.471
  },
  "oklch": {
    "l": 0.12839,
    "c": 0.05975,
    "h": 276.7
  },
  "luminance": 0.00185
}

Semantic roles & 50–950 ramp

primary

#04031E

secondary

#5F621B

accent

#F830F1

background

#F4F4F5

surface

#E6E6E9

border

#C2C2C5

text

#000003

muted

#777778

Preview Lab

Preview with #04031E

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

Preview Lab → · Contrast checker → · Palette generator →