#63B8ED#63B8ED

#63B8ED is a light, moderate cyan. Relative luminance 0.430; OKLCH L 75.0% C 0.113 H 238.2°. Best body text is #000000 at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#63B8ED
RGB	rgb(99, 184, 237)
HSL	hsl(203, 79%, 66%)
HSV	hsv(203, 58%, 93%)
CMYK	cmyk(58.2%, 22.4%, 0%, 7.1%)
CIE-LAB	lab(71.59, -10.59, -34.17)
CIE-LCH	lch(71.59, 35.78, 252.79°)
OKLab	oklab(75.03% -0.0594 -0.0957)
OKLCH	oklch(75.03% 0.113 238.2)
XYZ	xyz(37.5664, 43.0446, 86.4331)
Luminance	0.4305 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8ED #ED9863

analogous

#63EDDD #63B8ED #6373ED

triadic

#63B8ED #ED63B8 #B8ED63

tetradic

#63B8ED #DD63ED #ED9863 #73ED63

square

#63B8ED #DD63ED #ED9863 #73ED63

split-complementary

#63B8ED #ED6373 #EDDD63

monochromatic

#167EC0 #2C9FE7 #63B8ED #9AD1F3 #D1EAFA

Accessibility & contrast

On white

2.19

#63B8ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.61

#63B8ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8ED

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8ED	#FFFFFF	#000000	##000000
##63B8ED	1.00	2.19	9.61	9.61
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.61	21.00	1.00	1.00
##000000	9.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B7F0

Deuteranopia (green-blind)

#8DA9EC

Tritanopia (blue-blind)

#00C5CA

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63b8ed;
/* rgb */ color: rgb(99, 184, 237);
/* oklch */ color: oklch(75.0% 0.113 238.2);

Tailwind

colors: {
  custom: {
    50: '#9acdf3',
    500: '#63b8ed',
    950: '#000000',
  },
}

SCSS

$custom: #63b8ed;
$custom-light: #9acdf3;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8ed",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 237
  },
  "hsl": {
    "h": 203.043,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.75032,
    "c": 0.11261,
    "h": 238.2
  },
  "luminance": 0.43048
}

Semantic roles & 50–950 ramp

primary

#63B8ED

secondary

#EDD1BF

accent

#5A0ADC

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B8ED

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

Preview Lab → · Contrast checker → · Palette generator →