#213DA4#213DA4

#213DA4 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.169 H 266.7°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#213DA4
RGB	rgb(33, 61, 164)
HSL	hsl(227, 66%, 39%)
HSV	hsv(227, 80%, 64%)
CMYK	cmyk(79.9%, 62.8%, 0%, 35.7%)
CIE-LAB	lab(30.25, 28.48, -58.37)
CIE-LCH	lch(30.25, 64.95, 296.00°)
OKLab	oklab(40.97% -0.0097 -0.1688)
OKLCH	oklch(40.97% 0.169 266.7)
XYZ	xyz(8.9944, 6.3401, 35.8645)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213DA4 #A48821

analogous

#217EA4 #213DA4 #4721A4

triadic

#213DA4 #A4213D #3DA421

tetradic

#213DA4 #A4217E #A48821 #21A447

square

#213DA4 #A4217E #A48821 #21A447

split-complementary

#213DA4 #A44721 #7EA421

monochromatic

#0C173E #172A71 #213DA4 #2D51D5 #607BDF

Accessibility & contrast

On white

9.26

#213DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#213DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213DA4

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213DA4	#FFFFFF	#000000	##FFFFFF
##213DA4	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA7

Deuteranopia (green-blind)

#0041A2

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #213da4;
/* rgb */ color: rgb(33, 61, 164);
/* oklch */ color: oklch(41.0% 0.169 266.7);

Tailwind

colors: {
  custom: {
    50: '#7372c0',
    500: '#213da4',
    950: '#000000',
  },
}

SCSS

$custom: #213da4;
$custom-light: #7372c0;
$custom-dark: #000000;

JSON

{
  "hex": "#213da4",
  "rgb": {
    "r": 33,
    "g": 61,
    "b": 164
  },
  "hsl": {
    "h": 227.176,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40965,
    "c": 0.16913,
    "h": 266.7
  },
  "luminance": 0.06341
}

Semantic roles & 50–950 ramp

primary

#213DA4

secondary

#C4AE5D

accent

#C53EE9

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #213DA4

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

Preview Lab → · Contrast checker → · Palette generator →