#21319C#21319C

#21319C is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.0% C 0.173 H 269.2°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#21319C
RGB	rgb(33, 49, 156)
HSL	hsl(232, 65%, 37%)
HSV	hsv(232, 79%, 61%)
CMYK	cmyk(78.8%, 68.6%, 0%, 38.8%)
CIE-LAB	lab(26.50, 33.37, -59.67)
CIE-LCH	lch(26.50, 68.37, 299.21°)
OKLab	oklab(37.98% -0.0025 -0.1727)
OKLCH	oklch(37.98% 0.173 269.2)
XYZ	xyz(7.7242, 4.9194, 31.9885)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21319C #9C8C21

analogous

#216F9C #21319C #4F219C

triadic

#21319C #9C2131 #319C21

tetradic

#21319C #9C216F #9C8C21 #219C4F

square

#21319C #9C216F #9C8C21 #219C4F

split-complementary

#21319C #9C4F21 #6F9C21

monochromatic

#0C1137 #162169 #21319C #2C41CF #5B6CDC

Accessibility & contrast

On white

10.58

#21319C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#21319C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21319C

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21319C	#FFFFFF	#000000	##FFFFFF
##21319C	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459F

Deuteranopia (green-blind)

#00399A

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #21319c;
/* rgb */ color: rgb(33, 49, 156);
/* oklch */ color: oklch(38.0% 0.173 269.2);

Tailwind

colors: {
  custom: {
    50: '#7269ba',
    500: '#21319c',
    950: '#000000',
  },
}

SCSS

$custom: #21319c;
$custom-light: #7269ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21319c",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 156
  },
  "hsl": {
    "h": 232.195,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37983,
    "c": 0.17277,
    "h": 269.2
  },
  "luminance": 0.0492
}

Semantic roles & 50–950 ramp

primary

#21319C

secondary

#C1B358

accent

#D240E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21319C

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

Preview Lab → · Contrast checker → · Palette generator →