#21287D#21287D

#21287D is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.142 H 272.3°. Best body text is #FFFFFF at 12.62:1 contrast (WCAG AA passes).

Color values

HEX	#21287D
RGB	rgb(33, 40, 125)
HSL	hsl(235, 58%, 31%)
HSV	hsv(235, 74%, 49%)
CMYK	cmyk(73.6%, 68%, 0%, 51%)
CIE-LAB	lab(21.29, 27.70, -48.97)
CIE-LCH	lch(21.29, 56.26, 299.50°)
OKLab	oklab(33.27% 0.0056 -0.1415)
OKLCH	oklch(33.27% 0.142 272.3)
XYZ	xyz(5.0864, 3.3211, 19.7710)
Luminance	0.0332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21287D #7D7621

analogous

#21567D #21287D #48217D

triadic

#21287D #7D2128 #287D21

tetradic

#21287D #7D2156 #7D7621 #217D48

square

#21287D #7D2156 #7D7621 #217D48

split-complementary

#21287D #7D4821 #567D21

monochromatic

#07091C #14194D #21287D #2E37AD #4954CF

Accessibility & contrast

On white

12.62

#21287D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#21287D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21287D

12.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21287D	#FFFFFF	#000000	##FFFFFF
##21287D	1.00	12.62	1.66	12.62
#FFFFFF	12.62	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#002F7B

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #21287d;
/* rgb */ color: rgb(33, 40, 125);
/* oklch */ color: oklch(33.3% 0.142 272.3);

Tailwind

colors: {
  custom: {
    50: '#6b62a3',
    500: '#21287d',
    950: '#000000',
  },
}

SCSS

$custom: #21287d;
$custom-light: #6b62a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21287d",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 125
  },
  "hsl": {
    "h": 235.435,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.33268,
    "c": 0.1416,
    "h": 272.3
  },
  "luminance": 0.03322
}

Semantic roles & 50–950 ramp

primary

#21287D

secondary

#B0A84A

accent

#D646E1

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #21287D

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

Preview Lab → · Contrast checker → · Palette generator →