#213399#213399

#213399 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.166 H 268.8°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#213399
RGB	rgb(33, 51, 153)
HSL	hsl(231, 65%, 36%)
HSV	hsv(231, 78%, 60%)
CMYK	cmyk(78.4%, 66.7%, 0%, 40%)
CIE-LAB	lab(26.71, 30.94, -57.51)
CIE-LCH	lch(26.71, 65.30, 298.28°)
OKLab	oklab(38.04% -0.0034 -0.1664)
OKLCH	oklch(38.04% 0.166 268.8)
XYZ	xyz(7.5588, 4.9900, 30.6956)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213399 #998721

analogous

#216F99 #213399 #4B2199

triadic

#213399 #992133 #339921

tetradic

#213399 #99216F #998721 #21994B

square

#213399 #99216F #998721 #21994B

split-complementary

#213399 #994B21 #6F9921

monochromatic

#0B1134 #162267 #213399 #2C44CB #596DDB

Accessibility & contrast

On white

10.51

#213399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#213399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213399

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213399	#FFFFFF	#000000	##FFFFFF
##213399	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)

#00459C

Deuteranopia (green-blind)

#003A97

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #213399;
/* rgb */ color: rgb(33, 51, 153);
/* oklch */ color: oklch(38.0% 0.166 268.8);

Tailwind

colors: {
  custom: {
    50: '#716ab8',
    500: '#213399',
    950: '#000000',
  },
}

SCSS

$custom: #213399;
$custom-light: #716ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#213399",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 231,
    "s": 64.516,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38043,
    "c": 0.16645,
    "h": 268.8
  },
  "luminance": 0.04991
}

Semantic roles & 50–950 ramp

primary

#213399

secondary

#BFB056

accent

#CE40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #213399

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

Preview Lab → · Contrast checker → · Palette generator →