#021739#021739

#021739 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.2% C 0.072 H 258.3°. Best body text is #FFFFFF at 17.73:1 contrast (WCAG AA passes).

Color values

HEX	#021739
RGB	rgb(2, 23, 57)
HSL	hsl(217, 93%, 12%)
HSV	hsv(217, 96%, 22%)
CMYK	cmyk(96.5%, 59.6%, 0%, 77.6%)
CIE-LAB	lab(8.32, 7.24, -24.52)
CIE-LCH	lch(8.32, 25.56, 286.46°)
OKLab	oklab(21.19% -0.0146 -0.0707)
OKLCH	oklch(21.19% 0.072 258.3)
XYZ	xyz(1.0697, 0.9210, 3.9915)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#021739 #392402

analogous

#023339 #021739 #090239

triadic

#021739 #390217 #173902

tetradic

#021739 #390233 #392402 #023909

square

#021739 #390233 #392402 #023909

split-complementary

#021739 #390902 #333902

monochromatic

#010C1E #010C1E #021739 #042F74 #0647AF

Accessibility & contrast

On white

17.73

#021739 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#021739 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #021739

17.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##021739	#FFFFFF	#000000	##FFFFFF
##021739	1.00	17.73	1.18	17.73
#FFFFFF	17.73	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021B3A

Deuteranopia (green-blind)

#001638

Tritanopia (blue-blind)

#001F25

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #021739;
/* rgb */ color: rgb(2, 23, 57);
/* oklch */ color: oklch(21.2% 0.072 258.3);

Tailwind

colors: {
  custom: {
    50: '#4d5370',
    500: '#021739',
    950: '#000000',
  },
}

SCSS

$custom: #021739;
$custom-light: #4d5370;
$custom-dark: #000000;

JSON

{
  "hex": "#021739",
  "rgb": {
    "r": 2,
    "g": 23,
    "b": 57
  },
  "hsl": {
    "h": 217.091,
    "s": 93.22,
    "l": 11.569
  },
  "oklch": {
    "l": 0.2119,
    "c": 0.07221,
    "h": 258.3
  },
  "luminance": 0.00921
}

Semantic roles & 50–950 ramp

primary

#021739

secondary

#7D571A

accent

#AD29FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #021739

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

Preview Lab → · Contrast checker → · Palette generator →