#04022F#04022F

#04022F is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.0% C 0.088 H 271.8°. Best body text is #FFFFFF at 19.91:1 contrast (WCAG AA passes).

Color values

HEX	#04022F
RGB	rgb(4, 2, 47)
HSL	hsl(243, 92%, 10%)
HSV	hsv(243, 96%, 18%)
CMYK	cmyk(91.5%, 95.7%, 0%, 81.6%)
CIE-LAB	lab(2.48, 13.27, -26.54)
CIE-LCH	lch(2.48, 29.67, 296.56°)
OKLab	oklab(14.97% 0.0027 -0.0879)
OKLCH	oklch(14.97% 0.088 271.8)
XYZ	xyz(0.5847, 0.2744, 2.7109)
Luminance	0.0027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04022F #2D2F02

analogous

#02172F #04022F #1B022F

triadic

#04022F #2F0402 #022F04

tetradic

#04022F #2F0217 #2D2F02 #022F1B

square

#04022F #2F0217 #2D2F02 #022F1B

split-complementary

#04022F #2F1B02 #172F02

monochromatic

#02011D #02011D #04022F #09046A #0E07A4

Accessibility & contrast

On white

19.91

#04022F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#04022F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04022F

19.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04022F	#FFFFFF	#000000	##FFFFFF
##04022F	1.00	19.91	1.05	19.91
#FFFFFF	19.91	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000B30

Deuteranopia (green-blind)

#00072E

Tritanopia (blue-blind)

#000F18

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #04022f;
/* rgb */ color: rgb(4, 2, 47);
/* oklch */ color: oklch(15.0% 0.088 271.8);

Tailwind

colors: {
  custom: {
    50: '#4a4768',
    500: '#04022f',
    950: '#000000',
  },
}

SCSS

$custom: #04022f;
$custom-light: #4a4768;
$custom-dark: #000000;

JSON

{
  "hex": "#04022f",
  "rgb": {
    "r": 4,
    "g": 2,
    "b": 47
  },
  "hsl": {
    "h": 242.667,
    "s": 91.837,
    "l": 9.608
  },
  "oklch": {
    "l": 0.14967,
    "c": 0.08796,
    "h": 271.8
  },
  "luminance": 0.00274
}

Semantic roles & 50–950 ramp

primary

#04022F

secondary

#707419

accent

#FF29F5

background

#F4F3F6

surface

#E7E5EB

border

#C3C1C6

text

#010006

muted

#77777A

Preview Lab

Preview with #04022F

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

Preview Lab → · Contrast checker → · Palette generator →