#02023B#02023B

#02023B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.6% C 0.105 H 266.9°. Best body text is #FFFFFF at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#02023B
RGB	rgb(2, 2, 59)
HSL	hsl(240, 93%, 12%)
HSV	hsv(240, 97%, 23%)
CMYK	cmyk(96.6%, 96.6%, 0%, 76.9%)
CIE-LAB	lab(3.36, 19.76, -34.01)
CIE-LCH	lch(3.36, 39.33, 300.16°)
OKLab	oklab(16.63% -0.0057 -0.1053)
OKLCH	oklch(16.63% 0.105 266.9)
XYZ	xyz(0.8359, 0.3720, 4.1646)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#02023B #3B3B02

analogous

#021F3B #02023B #1F023B

triadic

#02023B #3B0202 #023B02

tetradic

#02023B #3B021F #3B3B02 #023B1F

square

#02023B #3B021F #3B3B02 #023B1F

split-complementary

#02023B #3B1F02 #1F3B02

monochromatic

#01011E #01011E #02023B #040476 #0606B1

Accessibility & contrast

On white

19.55

#02023B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#02023B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #02023B

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##02023B	#FFFFFF	#000000	##FFFFFF
##02023B	1.00	19.55	1.07	19.55
#FFFFFF	19.55	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F3D

Deuteranopia (green-blind)

#00093A

Tritanopia (blue-blind)

#00141F

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #02023b;
/* rgb */ color: rgb(2, 2, 59);
/* oklch */ color: oklch(16.6% 0.105 266.9);

Tailwind

colors: {
  custom: {
    50: '#4e4672',
    500: '#02023b',
    950: '#000000',
  },
}

SCSS

$custom: #02023b;
$custom-light: #4e4672;
$custom-dark: #000000;

JSON

{
  "hex": "#02023b",
  "rgb": {
    "r": 2,
    "g": 2,
    "b": 59
  },
  "hsl": {
    "h": 240,
    "s": 93.443,
    "l": 11.961
  },
  "oklch": {
    "l": 0.16635,
    "c": 0.10544,
    "h": 266.9
  },
  "luminance": 0.00372
}

Semantic roles & 50–950 ramp

primary

#02023B

secondary

#7E7E1A

accent

#FF29FF

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020008

muted

#78777B

Preview Lab

Preview with #02023B

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

Preview Lab → · Contrast checker → · Palette generator →