#021F3B#021F3B

#021F3B is a very dark, moderate cyan. Relative luminance 0.013; OKLCH L 23.6% C 0.064 H 250.7°. Best body text is #FFFFFF at 16.64:1 contrast (WCAG AA passes).

Color values

HEX	#021F3B
RGB	rgb(2, 31, 59)
HSL	hsl(209, 93%, 12%)
HSV	hsv(209, 97%, 23%)
CMYK	cmyk(96.6%, 47.5%, 0%, 76.9%)
CIE-LAB	lab(11.33, 1.88, -21.09)
CIE-LCH	lch(11.33, 21.17, 275.09°)
OKLab	oklab(23.58% -0.0212 -0.0604)
OKLCH	oklch(23.58% 0.064 250.7)
XYZ	xyz(1.3041, 1.3085, 4.3206)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#021F3B #3B1E02

analogous

#023B3B #021F3B #02023B

triadic

#021F3B #3B021F #1F3B02

tetradic

#021F3B #3B023B #3B1E02 #023B02

square

#021F3B #3B023B #3B1E02 #023B02

split-complementary

#021F3B #3B0202 #3B3B02

monochromatic

#01101E #01101E #021F3B #043E76 #065DB1

Accessibility & contrast

On white

16.64

#021F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#021F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #021F3B

16.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##021F3B	#FFFFFF	#000000	##FFFFFF
##021F3B	1.00	16.64	1.26	16.64
#FFFFFF	16.64	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11213C

Deuteranopia (green-blind)

#071C3A

Tritanopia (blue-blind)

#00262A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #021f3b;
/* rgb */ color: rgb(2, 31, 59);
/* oklch */ color: oklch(23.6% 0.064 250.7);

Tailwind

colors: {
  custom: {
    50: '#4e5a71',
    500: '#021f3b',
    950: '#000000',
  },
}

SCSS

$custom: #021f3b;
$custom-light: #4e5a71;
$custom-dark: #000000;

JSON

{
  "hex": "#021f3b",
  "rgb": {
    "r": 2,
    "g": 31,
    "b": 59
  },
  "hsl": {
    "h": 209.474,
    "s": 93.443,
    "l": 11.961
  },
  "oklch": {
    "l": 0.23579,
    "c": 0.06402,
    "h": 250.7
  },
  "luminance": 0.01309
}

Semantic roles & 50–950 ramp

primary

#021F3B

secondary

#7E4C1A

accent

#9229FF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020307

muted

#78787A

Preview Lab

Preview with #021F3B

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

Preview Lab → · Contrast checker → · Palette generator →