#2237A1#2237A1

#2237A1 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.6% C 0.172 H 268.3°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#2237A1
RGB	rgb(34, 55, 161)
HSL	hsl(230, 65%, 38%)
HSV	hsv(230, 79%, 63%)
CMYK	cmyk(78.9%, 65.8%, 0%, 36.9%)
CIE-LAB	lab(28.50, 31.41, -59.44)
CIE-LCH	lch(28.50, 67.23, 297.86°)
OKLab	oklab(39.6% -0.0052 -0.172)
OKLCH	oklch(39.6% 0.172 268.3)
XYZ	xyz(8.4567, 5.6447, 34.3551)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2237A1 #A18C22

analogous

#2276A1 #2237A1 #4D22A1

triadic

#2237A1 #A12237 #37A122

tetradic

#2237A1 #A12276 #A18C22 #22A14D

square

#2237A1 #A12276 #A18C22 #22A14D

split-complementary

#2237A1 #A14D22 #76A122

monochromatic

#0D143C #17266E #2237A1 #2D49D3 #6075DD

Accessibility & contrast

On white

9.86

#2237A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2237A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2237A1

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2237A1	#FFFFFF	#000000	##FFFFFF
##2237A1	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A4

Deuteranopia (green-blind)

#003D9F

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2237a1;
/* rgb */ color: rgb(34, 55, 161);
/* oklch */ color: oklch(39.6% 0.172 268.3);

Tailwind

colors: {
  custom: {
    50: '#736dbe',
    500: '#2237a1',
    950: '#000000',
  },
}

SCSS

$custom: #2237a1;
$custom-light: #736dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2237a1",
  "rgb": {
    "r": 34,
    "g": 55,
    "b": 161
  },
  "hsl": {
    "h": 230.079,
    "s": 65.128,
    "l": 38.235
  },
  "oklch": {
    "l": 0.39597,
    "c": 0.17209,
    "h": 268.3
  },
  "luminance": 0.05646
}

Semantic roles & 50–950 ramp

primary

#2237A1

secondary

#C2B15D

accent

#CC40E8

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2237A1

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

Preview Lab → · Contrast checker → · Palette generator →