#04083F#04083F

#04083F is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.7% C 0.101 H 267.9°. Best body text is #FFFFFF at 18.89:1 contrast (WCAG AA passes).

Color values

HEX	#04083F
RGB	rgb(4, 8, 63)
HSL	hsl(236, 88%, 13%)
HSV	hsv(236, 94%, 25%)
CMYK	cmyk(93.7%, 87.3%, 0%, 75.3%)
CIE-LAB	lab(5.04, 20.08, -34.15)
CIE-LCH	lch(5.04, 39.62, 300.46°)
OKLab	oklab(18.67% -0.0037 -0.1013)
OKLCH	oklch(18.67% 0.101 267.9)
XYZ	xyz(1.0338, 0.5582, 4.7549)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04083F #3F3B04

analogous

#04253F #04083F #1D043F

triadic

#04083F #3F0408 #083F04

tetradic

#04083F #3F0425 #3F3B04 #043F1D

square

#04083F #3F0425 #3F3B04 #043F1D

split-complementary

#04083F #3F1D04 #253F04

monochromatic

#02041D #02041D #04083F #080F79 #0B17B2

Accessibility & contrast

On white

18.89

#04083F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#04083F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04083F

18.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04083F	#FFFFFF	#000000	##FFFFFF
##04083F	1.00	18.89	1.11	18.89
#FFFFFF	18.89	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001441

Deuteranopia (green-blind)

#000E3E

Tritanopia (blue-blind)

#001923

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #04083f;
/* rgb */ color: rgb(4, 8, 63);
/* oklch */ color: oklch(18.7% 0.101 267.9);

Tailwind

colors: {
  custom: {
    50: '#514975',
    500: '#04083f',
    950: '#000000',
  },
}

SCSS

$custom: #04083f;
$custom-light: #514975;
$custom-dark: #000000;

JSON

{
  "hex": "#04083f",
  "rgb": {
    "r": 4,
    "g": 8,
    "b": 63
  },
  "hsl": {
    "h": 235.932,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.18668,
    "c": 0.10137,
    "h": 267.9
  },
  "luminance": 0.00558
}

Semantic roles & 50–950 ramp

primary

#04083F

secondary

#807A1E

accent

#F02AFE

background

#F4F4F7

surface

#E7E6ED

border

#C3C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #04083F

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

Preview Lab → · Contrast checker → · Palette generator →