#213DA1#213DA1

#213DA1 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.165 H 266.6°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#213DA1
RGB	rgb(33, 61, 161)
HSL	hsl(227, 66%, 38%)
HSV	hsv(227, 80%, 63%)
CMYK	cmyk(79.5%, 62.1%, 0%, 36.9%)
CIE-LAB	lab(29.99, 27.32, -56.99)
CIE-LCH	lch(29.99, 63.20, 295.61°)
OKLab	oklab(40.69% -0.0097 -0.1648)
OKLCH	oklch(40.69% 0.165 266.6)
XYZ	xyz(8.7267, 6.2330, 34.4545)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213DA1 #A18521

analogous

#217DA1 #213DA1 #4521A1

triadic

#213DA1 #A1213D #3DA121

tetradic

#213DA1 #A1217D #A18521 #21A145

square

#213DA1 #A1217D #A18521 #21A145

split-complementary

#213DA1 #A14521 #7DA121

monochromatic

#0C173B #172A6E #213DA1 #2C50D4 #5E7ADE

Accessibility & contrast

On white

9.35

#213DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#213DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213DA1

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213DA1	#FFFFFF	#000000	##FFFFFF
##213DA1	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #213da1;
/* rgb */ color: rgb(33, 61, 161);
/* oklch */ color: oklch(40.7% 0.165 266.6);

Tailwind

colors: {
  custom: {
    50: '#7272be',
    500: '#213da1',
    950: '#000000',
  },
}

SCSS

$custom: #213da1;
$custom-light: #7272be;
$custom-dark: #000000;

JSON

{
  "hex": "#213da1",
  "rgb": {
    "r": 33,
    "g": 61,
    "b": 161
  },
  "hsl": {
    "h": 226.875,
    "s": 65.979,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40689,
    "c": 0.16508,
    "h": 266.6
  },
  "luminance": 0.06234
}

Semantic roles & 50–950 ramp

primary

#213DA1

secondary

#C3AC5B

accent

#C43FE9

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #213DA1

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

Preview Lab → · Contrast checker → · Palette generator →