#21239D#21239D

#21239D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.9% C 0.189 H 271.1°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#21239D
RGB	rgb(33, 35, 157)
HSL	hsl(239, 65%, 37%)
HSV	hsv(239, 79%, 62%)
CMYK	cmyk(79%, 77.7%, 0%, 38.4%)
CIE-LAB	lab(23.54, 42.24, -65.18)
CIE-LCH	lch(23.54, 77.67, 302.95°)
OKLab	oklab(35.89% 0.0036 -0.1887)
OKLCH	oklch(35.89% 0.189 271.1)
XYZ	xyz(7.3120, 3.9589, 32.2705)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21239D #9D9B21

analogous

#21619D #21239D #5D219D

triadic

#21239D #9D2123 #239D21

tetradic

#21239D #9D2161 #9D9B21 #219D5D

square

#21239D #9D2161 #9D9B21 #219D5D

split-complementary

#21239D #9D5D21 #619D21

monochromatic

#0C0C38 #16186A #21239D #2C2ED0 #5C5EDD

Accessibility & contrast

On white

11.72

#21239D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#21239D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21239D

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21239D	#FFFFFF	#000000	##FFFFFF
##21239D	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA0

Deuteranopia (green-blind)

#00329B

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #21239d;
/* rgb */ color: rgb(33, 35, 157);
/* oklch */ color: oklch(35.9% 0.189 271.1);

Tailwind

colors: {
  custom: {
    50: '#7360bb',
    500: '#21239d',
    950: '#000000',
  },
}

SCSS

$custom: #21239d;
$custom-light: #7360bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21239d",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 157
  },
  "hsl": {
    "h": 239.032,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.35886,
    "c": 0.18876,
    "h": 271.1
  },
  "luminance": 0.0396
}

Semantic roles & 50–950 ramp

primary

#21239D

secondary

#C1BF59

accent

#E640E8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #21239D

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

Preview Lab → · Contrast checker → · Palette generator →