#2237A5#2237A5

#2237A5 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.177 H 268.2°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#2237A5
RGB	rgb(34, 55, 165)
HSL	hsl(230, 66%, 39%)
HSV	hsv(230, 79%, 65%)
CMYK	cmyk(79.4%, 66.7%, 0%, 35.3%)
CIE-LAB	lab(28.87, 32.91, -61.24)
CIE-LCH	lch(28.87, 69.53, 298.26°)
OKLab	oklab(39.99% -0.0054 -0.1773)
OKLCH	oklch(39.99% 0.177 268.2)
XYZ	xyz(8.8151, 5.7881, 36.2426)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2237A5 #A59022

analogous

#2279A5 #2237A5 #4F22A5

triadic

#2237A5 #A52237 #37A522

tetradic

#2237A5 #A52279 #A59022 #22A54F

square

#2237A5 #A52279 #A59022 #22A54F

split-complementary

#2237A5 #A54F22 #79A522

monochromatic

#0D1540 #182672 #2237A5 #304AD4 #6377DF

Accessibility & contrast

On white

9.73

#2237A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2237A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2237A5

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2237A5	#FFFFFF	#000000	##FFFFFF
##2237A5	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA8

Deuteranopia (green-blind)

#003EA3

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2237a5;
/* rgb */ color: rgb(34, 55, 165);
/* oklch */ color: oklch(40.0% 0.177 268.2);

Tailwind

colors: {
  custom: {
    50: '#746ec1',
    500: '#2237a5',
    950: '#000000',
  },
}

SCSS

$custom: #2237a5;
$custom-light: #746ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#2237a5",
  "rgb": {
    "r": 34,
    "g": 55,
    "b": 165
  },
  "hsl": {
    "h": 230.382,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.39985,
    "c": 0.17736,
    "h": 268.2
  },
  "luminance": 0.05789
}

Semantic roles & 50–950 ramp

primary

#2237A5

secondary

#C4B45F

accent

#CE3FE9

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2237A5

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

Preview Lab → · Contrast checker → · Palette generator →