#63C7F0#63C7F0

#63C7F0 is a light, moderate cyan. Relative luminance 0.498; OKLCH L 78.5% C 0.110 H 227.5°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#63C7F0
RGB	rgb(99, 199, 240)
HSL	hsl(197, 82%, 66%)
HSV	hsv(197, 59%, 94%)
CMYK	cmyk(58.8%, 17.1%, 0%, 5.9%)
CIE-LAB	lab(75.94, -17.60, -29.08)
CIE-LCH	lch(75.94, 33.99, 238.82°)
OKLab	oklab(78.53% -0.0743 -0.0811)
OKLCH	oklch(78.53% 0.11 227.5)
XYZ	xyz(41.2911, 49.7868, 89.8550)
Luminance	0.4979 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C7F0 #F08C63

analogous

#63F0D3 #63C7F0 #6381F0

triadic

#63C7F0 #F063C7 #C7F063

tetradic

#63C7F0 #D363F0 #F08C63 #81F063

square

#63C7F0 #D363F0 #F08C63 #81F063

split-complementary

#63C7F0 #F06381 #F0D363

monochromatic

#1392C6 #2BB3EB #63C7F0 #9BDBF5 #D3EFFB

Accessibility & contrast

On white

1.92

#63C7F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.96

#63C7F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C7F0

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C7F0	#FFFFFF	#000000	##000000
##63C7F0	1.00	1.92	10.96	10.96
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.96	21.00	1.00	1.00
##000000	10.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1C4F2

Deuteranopia (green-blind)

#9DB5F0

Tritanopia (blue-blind)

#00D3D4

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #63c7f0;
/* rgb */ color: rgb(99, 199, 240);
/* oklch */ color: oklch(78.5% 0.110 227.5);

Tailwind

colors: {
  custom: {
    50: '#9bd8f5',
    500: '#63c7f0',
    950: '#000000',
  },
}

SCSS

$custom: #63c7f0;
$custom-light: #9bd8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63c7f0",
  "rgb": {
    "r": 99,
    "g": 199,
    "b": 240
  },
  "hsl": {
    "h": 197.447,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.78531,
    "c": 0.10993,
    "h": 227.5
  },
  "luminance": 0.49791
}

Semantic roles & 50–950 ramp

primary

#63C7F0

secondary

#EECEC1

accent

#4607DF

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #63C7F0

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

Preview Lab → · Contrast checker → · Palette generator →