#21187F#21187F

#21187F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.0% C 0.162 H 275.2°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#21187F
RGB	rgb(33, 24, 127)
HSL	hsl(245, 68%, 30%)
HSV	hsv(245, 81%, 50%)
CMYK	cmyk(74%, 81.1%, 0%, 50.2%)
CIE-LAB	lab(17.96, 38.24, -55.72)
CIE-LCH	lch(17.96, 67.58, 304.46°)
OKLab	oklab(30.95% 0.0147 -0.1611)
OKLCH	oklch(30.95% 0.162 275.2)
XYZ	xyz(4.7833, 2.5084, 20.3067)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21187F #767F18

analogous

#18427F #21187F #55187F

triadic

#21187F #7F2118 #187F21

tetradic

#21187F #7F1842 #767F18 #187F55

square

#21187F #7F1842 #767F18 #187F55

split-complementary

#21187F #7F5518 #427F18

monochromatic

#07051A #140E4C #21187F #2E22B2 #4638D9

Accessibility & contrast

On white

13.98

#21187F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#21187F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21187F

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21187F	#FFFFFF	#000000	##FFFFFF
##21187F	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003082

Deuteranopia (green-blind)

#00277D

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #21187f;
/* rgb */ color: rgb(33, 24, 127);
/* oklch */ color: oklch(31.0% 0.162 275.2);

Tailwind

colors: {
  custom: {
    50: '#6d58a5',
    500: '#21187f',
    950: '#000000',
  },
}

SCSS

$custom: #21187f;
$custom-light: #6d58a5;
$custom-dark: #000000;

JSON

{
  "hex": "#21187f",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 127
  },
  "hsl": {
    "h": 245.243,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30951,
    "c": 0.16179,
    "h": 275.2
  },
  "luminance": 0.02509
}

Semantic roles & 50–950 ramp

primary

#21187F

secondary

#A9B33F

accent

#EB3DDC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21187F

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

Preview Lab → · Contrast checker → · Palette generator →