#213B8B#213B8B

#213B8B is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.137 H 266.3°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#213B8B
RGB	rgb(33, 59, 139)
HSL	hsl(225, 62%, 34%)
HSV	hsv(225, 76%, 55%)
CMYK	cmyk(76.3%, 57.6%, 0%, 45.5%)
CIE-LAB	lab(27.61, 20.09, -47.41)
CIE-LCH	lch(27.61, 51.49, 292.96°)
OKLab	oklab(38.34% -0.0089 -0.1367)
OKLCH	oklch(38.34% 0.137 266.3)
XYZ	xyz(6.8497, 5.3146, 25.0859)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B8B #8B7121

analogous

#21708B #213B8B #3C218B

triadic

#213B8B #8B213B #3B8B21

tetradic

#213B8B #8B2170 #8B7121 #218B3C

square

#213B8B #8B2170 #8B7121 #218B3C

split-complementary

#213B8B #8B3C21 #708B21

monochromatic

#0A1128 #15265A #213B8B #2D50BC #5171D6

Accessibility & contrast

On white

10.18

#213B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#213B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B8B

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B8B	#FFFFFF	#000000	##FFFFFF
##213B8B	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #213b8b;
/* rgb */ color: rgb(33, 59, 139);
/* oklch */ color: oklch(38.3% 0.137 266.3);

Tailwind

colors: {
  custom: {
    50: '#6d70ae',
    500: '#213b8b',
    950: '#000000',
  },
}

SCSS

$custom: #213b8b;
$custom-light: #6d70ae;
$custom-dark: #000000;

JSON

{
  "hex": "#213b8b",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 139
  },
  "hsl": {
    "h": 225.283,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38338,
    "c": 0.137,
    "h": 266.3
  },
  "luminance": 0.05315
}

Semantic roles & 50–950 ramp

primary

#213B8B

secondary

#B99F4F

accent

#BD43E5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #213B8B

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

Preview Lab → · Contrast checker → · Palette generator →