#21186B#21186B

#21186B is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.7% C 0.136 H 278.3°. Best body text is #FFFFFF at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#21186B
RGB	rgb(33, 24, 107)
HSL	hsl(247, 63%, 26%)
HSV	hsv(247, 78%, 42%)
CMYK	cmyk(69.2%, 77.6%, 0%, 58%)
CIE-LAB	lab(15.68, 31.45, -46.58)
CIE-LCH	lch(15.68, 56.20, 304.03°)
OKLab	oklab(28.68% 0.0197 -0.1345)
OKLCH	oklch(28.68% 0.136 278.3)
XYZ	xyz(3.6068, 2.0378, 14.1103)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21186B #626B18

analogous

#18386B #21186B #4A186B

triadic

#21186B #6B2118 #186B21

tetradic

#21186B #6B1838 #626B18 #186B4A

square

#21186B #6B1838 #626B18 #186B4A

split-complementary

#21186B #6B4A18 #386B18

monochromatic

#080619 #120D39 #21186B #30239D #402ECF

Accessibility & contrast

On white

14.92

#21186B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#21186B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21186B

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21186B	#FFFFFF	#000000	##FFFFFF
##21186B	1.00	14.92	1.41	14.92
#FFFFFF	14.92	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6D

Deuteranopia (green-blind)

#002469

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #21186b;
/* rgb */ color: rgb(33, 24, 107);
/* oklch */ color: oklch(28.7% 0.136 278.3);

Tailwind

colors: {
  custom: {
    50: '#685696',
    500: '#21186b',
    950: '#000000',
  },
}

SCSS

$custom: #21186b;
$custom-light: #685696;
$custom-dark: #000000;

JSON

{
  "hex": "#21186b",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 107
  },
  "hsl": {
    "h": 246.506,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28679,
    "c": 0.13595,
    "h": 278.3
  },
  "luminance": 0.02038
}

Semantic roles & 50–950 ramp

primary

#21186B

secondary

#96A13E

accent

#E641D5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #21186B

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

Preview Lab → · Contrast checker → · Palette generator →