#2563A6#2563A6

#2563A6 is a mid, vivid cyan. Relative luminance 0.121; OKLCH L 49.5% C 0.124 H 253.2°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#2563A6
RGB	rgb(37, 99, 166)
HSL	hsl(211, 64%, 40%)
HSV	hsv(211, 78%, 65%)
CMYK	cmyk(77.7%, 40.4%, 0%, 34.9%)
CIE-LAB	lab(41.33, 4.47, -41.68)
CIE-LCH	lch(41.33, 41.92, 276.12°)
OKLab	oklab(49.49% -0.036 -0.119)
OKLCH	oklch(49.49% 0.124 253.2)
XYZ	xyz(12.1051, 12.0688, 37.7605)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563A6 #A66825

analogous

#25A4A6 #2563A6 #2825A6

triadic

#2563A6 #A62563 #63A625

tetradic

#2563A6 #A625A4 #A66825 #25A628

square

#2563A6 #A625A4 #A66825 #25A628

split-complementary

#2563A6 #A62825 #A4A625

monochromatic

#0F2742 #1A4574 #2563A6 #3681D2 #68A0DD

Accessibility & contrast

On white

6.15

#2563A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#2563A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563A6

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563A6	#FFFFFF	#000000	##FFFFFF
##2563A6	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4368A9

Deuteranopia (green-blind)

#2E5CA5

Tritanopia (blue-blind)

#00737C

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #2563a6;
/* rgb */ color: rgb(37, 99, 166);
/* oklch */ color: oklch(49.5% 0.124 253.2);

Tailwind

colors: {
  custom: {
    50: '#738ec1',
    500: '#2563a6',
    950: '#000000',
  },
}

SCSS

$custom: #2563a6;
$custom-light: #738ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#2563a6",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 166
  },
  "hsl": {
    "h": 211.163,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49492,
    "c": 0.12437,
    "h": 253.2
  },
  "luminance": 0.1207
}

Semantic roles & 50–950 ramp

primary

#2563A6

secondary

#C39564

accent

#9741E7

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2563A6

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

Preview Lab → · Contrast checker → · Palette generator →