#63B7ED#63B7ED

#63B7ED is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.8% C 0.113 H 239.0°. Best body text is #000000 at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#63B7ED
RGB	rgb(99, 183, 237)
HSL	hsl(203, 79%, 66%)
HSV	hsv(203, 58%, 93%)
CMYK	cmyk(58.2%, 22.8%, 0%, 7.1%)
CIE-LAB	lab(71.30, -10.05, -34.61)
CIE-LCH	lch(71.30, 36.04, 253.81°)
OKLab	oklab(74.81% -0.0583 -0.0969)
OKLCH	oklch(74.81% 0.113 239)
XYZ	xyz(37.3594, 42.6306, 86.3641)
Luminance	0.4263 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7ED #ED9963

analogous

#63EDDE #63B7ED #6372ED

triadic

#63B7ED #ED63B7 #B7ED63

tetradic

#63B7ED #DE63ED #ED9963 #72ED63

square

#63B7ED #DE63ED #ED9963 #72ED63

split-complementary

#63B7ED #ED6372 #EDDE63

monochromatic

#167DC0 #2C9EE7 #63B7ED #9AD0F3 #D1EAFA

Accessibility & contrast

On white

2.20

#63B7ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.53

#63B7ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7ED

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7ED	#FFFFFF	#000000	##000000
##63B7ED	1.00	2.20	9.53	9.53
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.53	21.00	1.00	1.00
##000000	9.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB6F0

Deuteranopia (green-blind)

#8CA8EC

Tritanopia (blue-blind)

#00C5C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63b7ed;
/* rgb */ color: rgb(99, 183, 237);
/* oklch */ color: oklch(74.8% 0.113 239.0);

Tailwind

colors: {
  custom: {
    50: '#9accf3',
    500: '#63b7ed',
    950: '#000000',
  },
}

SCSS

$custom: #63b7ed;
$custom-light: #9accf3;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7ed",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 237
  },
  "hsl": {
    "h": 203.478,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.74808,
    "c": 0.11313,
    "h": 239
  },
  "luminance": 0.42634
}

Semantic roles & 50–950 ramp

primary

#63B7ED

secondary

#EDD1BF

accent

#5C0ADC

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B7ED

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

Preview Lab → · Contrast checker → · Palette generator →