#213F8A#213F8A

#213F8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.1% C 0.130 H 264.6°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#213F8A
RGB	rgb(33, 63, 138)
HSL	hsl(223, 61%, 34%)
HSV	hsv(223, 76%, 54%)
CMYK	cmyk(76.1%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(28.68, 16.92, -45.07)
CIE-LCH	lch(28.68, 48.14, 290.58°)
OKLab	oklab(39.12% -0.0122 -0.1298)
OKLCH	oklch(39.12% 0.13 264.6)
XYZ	xyz(6.9905, 5.7126, 24.7740)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F8A #8A6C21

analogous

#21738A #213F8A #37218A

triadic

#213F8A #8A213F #3F8A21

tetradic

#213F8A #8A2173 #8A6C21 #218A37

square

#213F8A #8A2173 #8A6C21 #218A37

split-complementary

#213F8A #8A3721 #738A21

monochromatic

#091227 #152859 #213F8A #2D56BB #5076D5

Accessibility & contrast

On white

9.80

#213F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#213F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F8A

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F8A	#FFFFFF	#000000	##FFFFFF
##213F8A	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08498D

Deuteranopia (green-blind)

#003F89

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #213f8a;
/* rgb */ color: rgb(33, 63, 138);
/* oklch */ color: oklch(39.1% 0.130 264.6);

Tailwind

colors: {
  custom: {
    50: '#6c73ad',
    500: '#213f8a',
    950: '#000000',
  },
}

SCSS

$custom: #213f8a;
$custom-light: #6c73ad;
$custom-dark: #000000;

JSON

{
  "hex": "#213f8a",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 222.857,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39116,
    "c": 0.13033,
    "h": 264.6
  },
  "luminance": 0.05713
}

Semantic roles & 50–950 ramp

primary

#213F8A

secondary

#B99A4E

accent

#B643E5

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #213F8A

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

Preview Lab → · Contrast checker → · Palette generator →