#21319E#21319E

#21319E is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.2% C 0.175 H 269.1°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#21319E
RGB	rgb(33, 49, 158)
HSL	hsl(232, 65%, 37%)
HSV	hsv(232, 79%, 62%)
CMYK	cmyk(79.1%, 69%, 0%, 38%)
CIE-LAB	lab(26.70, 34.11, -60.57)
CIE-LCH	lch(26.70, 69.51, 299.38°)
OKLab	oklab(38.19% -0.0027 -0.1754)
OKLCH	oklch(38.19% 0.175 269.1)
XYZ	xyz(7.8949, 4.9877, 32.8878)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21319E #9E8E21

analogous

#21709E #21319E #50219E

triadic

#21319E #9E2131 #319E21

tetradic

#21319E #9E2170 #9E8E21 #219E50

square

#21319E #9E2170 #9E8E21 #219E50

split-complementary

#21319E #9E5021 #709E21

monochromatic

#0C1239 #16216B #21319E #2C41D1 #5C6DDD

Accessibility & contrast

On white

10.51

#21319E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#21319E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21319E

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21319E	#FFFFFF	#000000	##FFFFFF
##21319E	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A1

Deuteranopia (green-blind)

#00399C

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #21319e;
/* rgb */ color: rgb(33, 49, 158);
/* oklch */ color: oklch(38.2% 0.175 269.1);

Tailwind

colors: {
  custom: {
    50: '#7269bc',
    500: '#21319e',
    950: '#000000',
  },
}

SCSS

$custom: #21319e;
$custom-light: #7269bc;
$custom-dark: #000000;

JSON

{
  "hex": "#21319e",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 158
  },
  "hsl": {
    "h": 232.32,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38185,
    "c": 0.17539,
    "h": 269.1
  },
  "luminance": 0.04989
}

Semantic roles & 50–950 ramp

primary

#21319E

secondary

#C1B459

accent

#D33FE8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21319E

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

Preview Lab → · Contrast checker → · Palette generator →