#2563AD#2563AD

#2563AD is a mid, vivid cyan. Relative luminance 0.123; OKLCH L 49.9% C 0.134 H 255.1°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#2563AD
RGB	rgb(37, 99, 173)
HSL	hsl(213, 65%, 41%)
HSV	hsv(213, 79%, 68%)
CMYK	cmyk(78.6%, 42.8%, 0%, 32.2%)
CIE-LAB	lab(41.74, 7.17, -45.15)
CIE-LCH	lch(41.74, 45.71, 279.03°)
OKLab	oklab(49.95% -0.0344 -0.1292)
OKLCH	oklch(49.95% 0.134 255.1)
XYZ	xyz(12.7648, 12.3326, 41.2347)
Luminance	0.1233 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563AD #AD6F25

analogous

#25A7AD #2563AD #2B25AD

triadic

#2563AD #AD2563 #63AD25

tetradic

#2563AD #AD25A7 #AD6F25 #25AD2B

square

#2563AD #AD25A7 #AD6F25 #25AD2B

split-complementary

#2563AD #AD2B25 #A7AD25

monochromatic

#0F2948 #1A467B #2563AD #3A81D5 #6DA1E0

Accessibility & contrast

On white

6.06

#2563AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#2563AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563AD

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563AD	#FFFFFF	#000000	##FFFFFF
##2563AD	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E69B0

Deuteranopia (green-blind)

#255DAC

Tritanopia (blue-blind)

#00757F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #2563ad;
/* rgb */ color: rgb(37, 99, 173);
/* oklch */ color: oklch(49.9% 0.134 255.1);

Tailwind

colors: {
  custom: {
    50: '#748ec6',
    500: '#2563ad',
    950: '#000000',
  },
}

SCSS

$custom: #2563ad;
$custom-light: #748ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#2563ad",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 173
  },
  "hsl": {
    "h": 212.647,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.49949,
    "c": 0.13373,
    "h": 255.1
  },
  "luminance": 0.12334
}

Semantic roles & 50–950 ramp

primary

#2563AD

secondary

#C69B68

accent

#9B40E8

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2563AD

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

Preview Lab → · Contrast checker → · Palette generator →