#213EB4#213EB4

#213EB4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.189 H 266.8°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#213EB4
RGB	rgb(33, 62, 180)
HSL	hsl(228, 69%, 42%)
HSV	hsv(228, 82%, 71%)
CMYK	cmyk(81.7%, 65.6%, 0%, 29.4%)
CIE-LAB	lab(31.95, 33.88, -65.17)
CIE-LCH	lch(31.95, 73.45, 297.47°)
OKLab	oklab(42.66% -0.0106 -0.1887)
OKLCH	oklch(42.66% 0.189 266.8)
XYZ	xyz(10.5852, 7.0626, 43.9765)
Luminance	0.0706 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213EB4 #B49721

analogous

#2188B4 #213EB4 #4D21B4

triadic

#213EB4 #B4213E #3EB421

tetradic

#213EB4 #B42188 #B49721 #21B44D

square

#213EB4 #B42188 #B49721 #21B44D

split-complementary

#213EB4 #B44D21 #88B421

monochromatic

#0E1A4D #182C80 #213EB4 #3858DA #6B83E4

Accessibility & contrast

On white

8.70

#213EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#213EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213EB4

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213EB4	#FFFFFF	#000000	##FFFFFF
##213EB4	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B8

Deuteranopia (green-blind)

#0044B2

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #213eb4;
/* rgb */ color: rgb(33, 62, 180);
/* oklch */ color: oklch(42.7% 0.189 266.8);

Tailwind

colors: {
  custom: {
    50: '#7773cc',
    500: '#213eb4',
    950: '#000000',
  },
}

SCSS

$custom: #213eb4;
$custom-light: #7773cc;
$custom-dark: #000000;

JSON

{
  "hex": "#213eb4",
  "rgb": {
    "r": 33,
    "g": 62,
    "b": 180
  },
  "hsl": {
    "h": 228.163,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42657,
    "c": 0.18902,
    "h": 266.8
  },
  "luminance": 0.07064
}

Semantic roles & 50–950 ramp

primary

#213EB4

secondary

#CAB667

accent

#C93CEC

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #213EB4

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

Preview Lab → · Contrast checker → · Palette generator →