#63B5CC#63B5CC

#63B5CC is a light, moderate cyan. Relative luminance 0.401; OKLCH L 73.0% C 0.087 H 218.2°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#63B5CC
RGB	rgb(99, 181, 204)
HSL	hsl(193, 51%, 59%)
HSV	hsv(193, 51%, 80%)
CMYK	cmyk(51.5%, 11.3%, 0%, 20%)
CIE-LAB	lab(69.51, -18.71, -19.34)
CIE-LCH	lch(69.51, 26.91, 225.95°)
OKLab	oklab(72.98% -0.068 -0.0535)
OKLCH	oklch(72.98% 0.087 218.2)
XYZ	xyz(32.5644, 40.0572, 63.1308)
Luminance	0.4006 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B5CC #CC7A63

analogous

#63CCAF #63B5CC #6381CC

triadic

#63B5CC #CC63B5 #B5CC63

tetradic

#63B5CC #AF63CC #CC7A63 #81CC63

square

#63B5CC #AF63CC #CC7A63 #81CC63

split-complementary

#63B5CC #CC6381 #CCAF63

monochromatic

#2C7488 #3C9BB6 #63B5CC #91CBDB #BFE1EA

Accessibility & contrast

On white

2.33

#63B5CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.01

#63B5CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B5CC

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B5CC	#FFFFFF	#000000	##000000
##63B5CC	1.00	2.33	9.01	9.01
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.01	21.00	1.00	1.00
##000000	9.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B1CD

Deuteranopia (green-blind)

#96A5CC

Tritanopia (blue-blind)

#1EBDBC

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b5cc;
/* rgb */ color: rgb(99, 181, 204);
/* oklch */ color: oklch(73.0% 0.087 218.2);

Tailwind

colors: {
  custom: {
    50: '#97cbdb',
    500: '#63b5cc',
    950: '#000000',
  },
}

SCSS

$custom: #63b5cc;
$custom-light: #97cbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#63b5cc",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 204
  },
  "hsl": {
    "h": 193.143,
    "s": 50.725,
    "l": 59.412
  },
  "oklch": {
    "l": 0.72977,
    "c": 0.08653,
    "h": 218.2
  },
  "luminance": 0.4006
}

Semantic roles & 50–950 ramp

primary

#63B5CC

secondary

#DABAB1

accent

#6C4EDA

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B5CC

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

Preview Lab → · Contrast checker → · Palette generator →