#213B99#213B99

#213B99 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.157 H 266.9°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#213B99
RGB	rgb(33, 59, 153)
HSL	hsl(227, 65%, 36%)
HSV	hsv(227, 78%, 60%)
CMYK	cmyk(78.4%, 61.4%, 0%, 40%)
CIE-LAB	lab(28.77, 25.57, -54.12)
CIE-LCH	lch(28.77, 59.86, 295.29°)
OKLab	oklab(39.57% -0.0084 -0.1564)
OKLCH	oklch(39.57% 0.157 266.9)
XYZ	xyz(7.9389, 5.7503, 30.8223)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B99 #997F21

analogous

#217799 #213B99 #432199

triadic

#213B99 #99213B #3B9921

tetradic

#213B99 #992177 #997F21 #219943

square

#213B99 #992177 #997F21 #219943

split-complementary

#213B99 #994321 #779921

monochromatic

#0B1434 #162867 #213B99 #2C4ECB #5975DB

Accessibility & contrast

On white

9.77

#213B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#213B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B99

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B99	#FFFFFF	#000000	##FFFFFF
##213B99	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#003E97

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #213b99;
/* rgb */ color: rgb(33, 59, 153);
/* oklch */ color: oklch(39.6% 0.157 266.9);

Tailwind

colors: {
  custom: {
    50: '#7070b8',
    500: '#213b99',
    950: '#000000',
  },
}

SCSS

$custom: #213b99;
$custom-light: #7070b8;
$custom-dark: #000000;

JSON

{
  "hex": "#213b99",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 153
  },
  "hsl": {
    "h": 227,
    "s": 64.516,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39569,
    "c": 0.15665,
    "h": 266.9
  },
  "luminance": 0.05751
}

Semantic roles & 50–950 ramp

primary

#213B99

secondary

#BFA956

accent

#C340E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #213B99

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

Preview Lab → · Contrast checker → · Palette generator →