#21175B#21175B

#21175B is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.8% C 0.115 H 282.0°. Best body text is #FFFFFF at 15.69:1 contrast (WCAG AA passes).

Color values

HEX	#21175B
RGB	rgb(33, 23, 91)
HSL	hsl(249, 60%, 22%)
HSV	hsv(249, 75%, 36%)
CMYK	cmyk(63.7%, 74.7%, 0%, 64.3%)
CIE-LAB	lab(13.78, 26.47, -39.12)
CIE-LCH	lch(13.78, 47.23, 304.08°)
OKLab	oklab(26.81% 0.024 -0.1127)
OKLCH	oklch(26.81% 0.115 282)
XYZ	xyz(2.8213, 1.6913, 10.0733)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21175B #515B17

analogous

#172F5B #21175B #43175B

triadic

#21175B #5B2117 #175B21

tetradic

#21175B #5B172F #515B17 #175B43

square

#21175B #5B172F #515B17 #175B43

split-complementary

#21175B #5B4317 #2F5B17

monochromatic

#090618 #0F0B2A #21175B #33238C #4430BD

Accessibility & contrast

On white

15.69

#21175B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#21175B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21175B

15.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21175B	#FFFFFF	#000000	##FFFFFF
##21175B	1.00	15.69	1.34	15.69
#FFFFFF	15.69	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255D

Deuteranopia (green-blind)

#00215A

Tritanopia (blue-blind)

#002937

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #21175b;
/* rgb */ color: rgb(33, 23, 91);
/* oklch */ color: oklch(26.8% 0.115 282.0);

Tailwind

colors: {
  custom: {
    50: '#64558a',
    500: '#21175b',
    950: '#000000',
  },
}

SCSS

$custom: #21175b;
$custom-light: #64558a;
$custom-dark: #000000;

JSON

{
  "hex": "#21175b",
  "rgb": {
    "r": 33,
    "g": 23,
    "b": 91
  },
  "hsl": {
    "h": 248.824,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26809,
    "c": 0.1152,
    "h": 282
  },
  "luminance": 0.01691
}

Semantic roles & 50–950 ramp

primary

#21175B

secondary

#85923C

accent

#E345CC

background

#F6F5F8

surface

#EBE8F0

border

#C6C4CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #21175B

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

Preview Lab → · Contrast checker → · Palette generator →