#21319D#21319D

#21319D is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.1% C 0.174 H 269.1°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#21319D
RGB	rgb(33, 49, 157)
HSL	hsl(232, 65%, 37%)
HSV	hsv(232, 79%, 62%)
CMYK	cmyk(79%, 68.8%, 0%, 38.4%)
CIE-LAB	lab(26.60, 33.74, -60.12)
CIE-LCH	lch(26.60, 68.94, 299.30°)
OKLab	oklab(38.08% -0.0026 -0.1741)
OKLCH	oklch(38.08% 0.174 269.1)
XYZ	xyz(7.8092, 4.9534, 32.4363)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21319D #9D8D21

analogous

#216F9D #21319D #4F219D

triadic

#21319D #9D2131 #319D21

tetradic

#21319D #9D216F #9D8D21 #219D4F

square

#21319D #9D216F #9D8D21 #219D4F

split-complementary

#21319D #9D4F21 #6F9D21

monochromatic

#0C1138 #16216A #21319D #2C41D0 #5C6CDD

Accessibility & contrast

On white

10.55

#21319D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#21319D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21319D

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21319D	#FFFFFF	#000000	##FFFFFF
##21319D	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A0

Deuteranopia (green-blind)

#00399B

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #21319d;
/* rgb */ color: rgb(33, 49, 157);
/* oklch */ color: oklch(38.1% 0.174 269.1);

Tailwind

colors: {
  custom: {
    50: '#7269bb',
    500: '#21319d',
    950: '#000000',
  },
}

SCSS

$custom: #21319d;
$custom-light: #7269bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21319d",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 157
  },
  "hsl": {
    "h": 232.258,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38084,
    "c": 0.17408,
    "h": 269.1
  },
  "luminance": 0.04954
}

Semantic roles & 50–950 ramp

primary

#21319D

secondary

#C1B459

accent

#D240E8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21319D

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

Preview Lab → · Contrast checker → · Palette generator →