#213B9A#213B9A

#213B9A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.158 H 267.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#213B9A
RGB	rgb(33, 59, 154)
HSL	hsl(227, 65%, 37%)
HSV	hsv(227, 79%, 60%)
CMYK	cmyk(78.6%, 61.7%, 0%, 39.6%)
CIE-LAB	lab(28.86, 25.96, -54.59)
CIE-LCH	lch(28.86, 60.45, 295.43°)
OKLab	oklab(39.66% -0.0084 -0.1578)
OKLCH	oklch(39.66% 0.158 267)
XYZ	xyz(8.0219, 5.7835, 31.2591)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B9A #9A8021

analogous

#21789A #213B9A #43219A

triadic

#213B9A #9A213B #3B9A21

tetradic

#213B9A #9A2178 #9A8021 #219A43

square

#213B9A #9A2178 #9A8021 #219A43

split-complementary

#213B9A #9A4321 #789A21

monochromatic

#0B1435 #162868 #213B9A #2C4ECC #5A76DC

Accessibility & contrast

On white

9.74

#213B9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#213B9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B9A

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B9A	#FFFFFF	#000000	##FFFFFF
##213B9A	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #213b9a;
/* rgb */ color: rgb(33, 59, 154);
/* oklch */ color: oklch(39.7% 0.158 267.0);

Tailwind

colors: {
  custom: {
    50: '#7070b9',
    500: '#213b9a',
    950: '#000000',
  },
}

SCSS

$custom: #213b9a;
$custom-light: #7070b9;
$custom-dark: #000000;

JSON

{
  "hex": "#213b9a",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 154
  },
  "hsl": {
    "h": 227.107,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.3966,
    "c": 0.15802,
    "h": 267
  },
  "luminance": 0.05784
}

Semantic roles & 50–950 ramp

primary

#213B9A

secondary

#C0A957

accent

#C440E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #213B9A

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

Preview Lab → · Contrast checker → · Palette generator →