#2563A4#2563A4

#2563A4 is a mid, vivid cyan. Relative luminance 0.120; OKLCH L 49.4% C 0.122 H 252.5°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#2563A4
RGB	rgb(37, 99, 164)
HSL	hsl(211, 63%, 39%)
HSV	hsv(211, 77%, 64%)
CMYK	cmyk(77.4%, 39.6%, 0%, 35.7%)
CIE-LAB	lab(41.21, 3.70, -40.68)
CIE-LCH	lch(41.21, 40.85, 275.20°)
OKLab	oklab(49.36% -0.0365 -0.1161)
OKLCH	oklch(49.36% 0.122 252.5)
XYZ	xyz(11.9231, 11.9959, 36.8018)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563A4 #A46625

analogous

#25A3A4 #2563A4 #2725A4

triadic

#2563A4 #A42563 #63A425

tetradic

#2563A4 #A425A3 #A46625 #25A427

square

#2563A4 #A425A3 #A46625 #25A427

split-complementary

#2563A4 #A42725 #A3A425

monochromatic

#0E2740 #1A4572 #2563A4 #3581D1 #67A0DD

Accessibility & contrast

On white

6.18

#2563A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#2563A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563A4

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563A4	#FFFFFF	#000000	##FFFFFF
##2563A4	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4468A7

Deuteranopia (green-blind)

#305CA3

Tritanopia (blue-blind)

#00727B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #2563a4;
/* rgb */ color: rgb(37, 99, 164);
/* oklch */ color: oklch(49.4% 0.122 252.5);

Tailwind

colors: {
  custom: {
    50: '#728ebf',
    500: '#2563a4',
    950: '#000000',
  },
}

SCSS

$custom: #2563a4;
$custom-light: #728ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#2563a4",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 164
  },
  "hsl": {
    "h": 210.709,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.49364,
    "c": 0.12171,
    "h": 252.5
  },
  "luminance": 0.11997
}

Semantic roles & 50–950 ramp

primary

#2563A4

secondary

#C29462

accent

#9642E6

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2563A4

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

Preview Lab → · Contrast checker → · Palette generator →