#21176B#21176B

#21176B is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.137 H 278.6°. Best body text is #FFFFFF at 15.00:1 contrast (WCAG AA passes).

Color values

HEX	#21176B
RGB	rgb(33, 23, 107)
HSL	hsl(247, 65%, 25%)
HSV	hsv(247, 79%, 42%)
CMYK	cmyk(69.2%, 78.5%, 0%, 58%)
CIE-LAB	lab(15.47, 32.05, -46.93)
CIE-LCH	lch(15.47, 56.83, 304.33°)
OKLab	oklab(28.53% 0.0204 -0.1355)
OKLCH	oklch(28.53% 0.137 278.6)
XYZ	xyz(3.5866, 1.9974, 14.1036)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21176B #616B17

analogous

#17376B #21176B #4B176B

triadic

#21176B #6B2117 #176B21

tetradic

#21176B #6B1737 #616B17 #176B4B

square

#21176B #6B1737 #616B17 #176B4B

split-complementary

#21176B #6B4B17 #376B17

monochromatic

#080519 #110C39 #21176B #31229D #402DD0

Accessibility & contrast

On white

15.00

#21176B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#21176B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21176B

15.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21176B	#FFFFFF	#000000	##FFFFFF
##21176B	1.00	15.00	1.40	15.00
#FFFFFF	15.00	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6D

Deuteranopia (green-blind)

#002369

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #21176b;
/* rgb */ color: rgb(33, 23, 107);
/* oklch */ color: oklch(28.5% 0.137 278.6);

Tailwind

colors: {
  custom: {
    50: '#685696',
    500: '#21176b',
    950: '#000000',
  },
}

SCSS

$custom: #21176b;
$custom-light: #685696;
$custom-dark: #000000;

JSON

{
  "hex": "#21176b",
  "rgb": {
    "r": 33,
    "g": 23,
    "b": 107
  },
  "hsl": {
    "h": 247.143,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.2853,
    "c": 0.13705,
    "h": 278.6
  },
  "luminance": 0.01998
}

Semantic roles & 50–950 ramp

primary

#21176B

secondary

#95A13D

accent

#E840D4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #21176B

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

Preview Lab → · Contrast checker → · Palette generator →