#21237F#21237F

#21237F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.6% C 0.150 H 273.3°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#21237F
RGB	rgb(33, 35, 127)
HSL	hsl(239, 59%, 31%)
HSV	hsv(239, 74%, 50%)
CMYK	cmyk(74%, 72.4%, 0%, 50.2%)
CIE-LAB	lab(20.27, 31.72, -51.90)
CIE-LCH	lch(20.27, 60.83, 301.43°)
OKLab	oklab(32.59% 0.0088 -0.1501)
OKLCH	oklch(32.59% 0.15 273.3)
XYZ	xyz(5.0577, 3.0572, 20.3981)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21237F #7F7D21

analogous

#21527F #21237F #4E217F

triadic

#21237F #7F2123 #237F21

tetradic

#21237F #7F2152 #7F7D21 #217F4E

square

#21237F #7F2152 #7F7D21 #217F4E

split-complementary

#21237F #7F4E21 #527F21

monochromatic

#08081E #14164E #21237F #2E30B0 #4A4DD0

Accessibility & contrast

On white

13.03

#21237F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#21237F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21237F

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21237F	#FFFFFF	#000000	##FFFFFF
##21237F	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003582

Deuteranopia (green-blind)

#002C7D

Tritanopia (blue-blind)

#003C4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #21237f;
/* rgb */ color: rgb(33, 35, 127);
/* oklch */ color: oklch(32.6% 0.150 273.3);

Tailwind

colors: {
  custom: {
    50: '#6c5ea5',
    500: '#21237f',
    950: '#000000',
  },
}

SCSS

$custom: #21237f;
$custom-light: #6c5ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#21237f",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 127
  },
  "hsl": {
    "h": 238.723,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32593,
    "c": 0.15034,
    "h": 273.3
  },
  "luminance": 0.03058
}

Semantic roles & 50–950 ramp

primary

#21237F

secondary

#B2AF4A

accent

#DF46E2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #21237F

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

Preview Lab → · Contrast checker → · Palette generator →