#21286B#21286B

#21286B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.6% C 0.116 H 273.3°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#21286B
RGB	rgb(33, 40, 107)
HSL	hsl(234, 53%, 27%)
HSV	hsv(234, 69%, 42%)
CMYK	cmyk(69.2%, 62.6%, 0%, 58%)
CIE-LAB	lab(19.65, 20.83, -40.09)
CIE-LCH	lch(19.65, 45.18, 297.45°)
OKLab	oklab(31.56% 0.0066 -0.1155)
OKLCH	oklch(31.56% 0.116 273.3)
XYZ	xyz(4.0389, 2.9021, 14.2544)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21286B #6B6421

analogous

#214D6B #21286B #3F216B

triadic

#21286B #6B2128 #286B21

tetradic

#21286B #6B214D #6B6421 #216B3F

square

#21286B #6B214D #6B6421 #216B3F

split-complementary

#21286B #6B3F21 #4D6B21

monochromatic

#070917 #13173C #21286B #2F399A #424EC5

Accessibility & contrast

On white

13.29

#21286B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#21286B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21286B

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21286B	#FFFFFF	#000000	##FFFFFF
##21286B	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336D

Deuteranopia (green-blind)

#002C6A

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #21286b;
/* rgb */ color: rgb(33, 40, 107);
/* oklch */ color: oklch(31.6% 0.116 273.3);

Tailwind

colors: {
  custom: {
    50: '#666196',
    500: '#21286b',
    950: '#000000',
  },
}

SCSS

$custom: #21286b;
$custom-light: #666196;
$custom-dark: #000000;

JSON

{
  "hex": "#21286b",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 107
  },
  "hsl": {
    "h": 234.324,
    "s": 52.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31555,
    "c": 0.11565,
    "h": 273.3
  },
  "luminance": 0.02902
}

Semantic roles & 50–950 ramp

primary

#21286B

secondary

#9F9749

accent

#CF4CDC

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #21286B

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

Preview Lab → · Contrast checker → · Palette generator →