#63C5ED#63C5ED

#63C5ED is a light, moderate cyan. Relative luminance 0.487; OKLCH L 78.0% C 0.108 H 227.3°. Best body text is #000000 at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#63C5ED
RGB	rgb(99, 197, 237)
HSL	hsl(197, 79%, 66%)
HSV	hsv(197, 58%, 93%)
CMYK	cmyk(58.2%, 16.9%, 0%, 7.1%)
CIE-LAB	lab(75.26, -17.45, -28.51)
CIE-LCH	lch(75.26, 33.43, 238.52°)
OKLab	oklab(77.96% -0.0732 -0.0794)
OKLCH	oklch(77.96% 0.108 227.3)
XYZ	xyz(40.3920, 48.6957, 87.3749)
Luminance	0.4870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C5ED #ED8B63

analogous

#63EDD0 #63C5ED #6380ED

triadic

#63C5ED #ED63C5 #C5ED63

tetradic

#63C5ED #D063ED #ED8B63 #80ED63

square

#63C5ED #D063ED #ED8B63 #80ED63

split-complementary

#63C5ED #ED6380 #EDD063

monochromatic

#168EC0 #2CB1E7 #63C5ED #9AD9F3 #D1EEFA

Accessibility & contrast

On white

1.96

#63C5ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.74

#63C5ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C5ED

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C5ED	#FFFFFF	#000000	##000000
##63C5ED	1.00	1.96	10.74	10.74
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.74	21.00	1.00	1.00
##000000	10.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0C2EF

Deuteranopia (green-blind)

#9CB3ED

Tritanopia (blue-blind)

#00D1D2

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #63c5ed;
/* rgb */ color: rgb(99, 197, 237);
/* oklch */ color: oklch(78.0% 0.108 227.3);

Tailwind

colors: {
  custom: {
    50: '#9ad6f3',
    500: '#63c5ed',
    950: '#000000',
  },
}

SCSS

$custom: #63c5ed;
$custom-light: #9ad6f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63c5ed",
  "rgb": {
    "r": 99,
    "g": 197,
    "b": 237
  },
  "hsl": {
    "h": 197.391,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.77955,
    "c": 0.10803,
    "h": 227.3
  },
  "luminance": 0.487
}

Semantic roles & 50–950 ramp

primary

#63C5ED

secondary

#EDCCBF

accent

#470ADC

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #63C5ED

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

Preview Lab → · Contrast checker → · Palette generator →