#21187D#21187D

#21187D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.159 H 275.5°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#21187D
RGB	rgb(33, 24, 125)
HSL	hsl(245, 68%, 29%)
HSV	hsv(245, 81%, 49%)
CMYK	cmyk(73.6%, 80.8%, 0%, 51%)
CIE-LAB	lab(17.72, 37.57, -54.84)
CIE-LCH	lch(17.72, 66.47, 304.42°)
OKLab	oklab(30.72% 0.0152 -0.1585)
OKLCH	oklch(30.72% 0.159 275.5)
XYZ	xyz(4.6543, 2.4568, 19.6270)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21187D #747D18

analogous

#18417D #21187D #54187D

triadic

#21187D #7D2118 #187D21

tetradic

#21187D #7D1841 #747D18 #187D54

square

#21187D #7D1841 #747D18 #187D54

split-complementary

#21187D #7D5418 #417D18

monochromatic

#07051A #130E4A #21187D #2F22B0 #4537D9

Accessibility & contrast

On white

14.08

#21187D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#21187D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21187D

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21187D	#FFFFFF	#000000	##FFFFFF
##21187D	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003080

Deuteranopia (green-blind)

#00277B

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #21187d;
/* rgb */ color: rgb(33, 24, 125);
/* oklch */ color: oklch(30.7% 0.159 275.5);

Tailwind

colors: {
  custom: {
    50: '#6c57a4',
    500: '#21187d',
    950: '#000000',
  },
}

SCSS

$custom: #21187d;
$custom-light: #6c57a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21187d",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 125
  },
  "hsl": {
    "h": 245.347,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30718,
    "c": 0.15928,
    "h": 275.5
  },
  "luminance": 0.02457
}

Semantic roles & 50–950 ramp

primary

#21187D

secondary

#A7B23F

accent

#EB3DDB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21187D

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

Preview Lab → · Contrast checker → · Palette generator →