#63CBE3#63CBE3

#63CBE3 is a light, moderate cyan. Relative luminance 0.509; OKLCH L 78.9% C 0.102 H 215.0°. Best body text is #000000 at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#63CBE3
RGB	rgb(99, 203, 227)
HSL	hsl(191, 70%, 64%)
HSV	hsv(191, 56%, 89%)
CMYK	cmyk(56.4%, 10.6%, 0%, 11%)
CIE-LAB	lab(76.62, -23.42, -21.04)
CIE-LCH	lch(76.62, 31.48, 221.95°)
OKLab	oklab(78.93% -0.0833 -0.0583)
OKLCH	oklch(78.93% 0.102 215)
XYZ	xyz(40.3611, 50.9067, 80.3571)
Luminance	0.5091 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBE3 #E37B63

analogous

#63E3BB #63CBE3 #638BE3

triadic

#63CBE3 #E363CB #CBE363

tetradic

#63CBE3 #BB63E3 #E37B63 #8BE363

square

#63CBE3 #BB63E3 #E37B63 #8BE363

split-complementary

#63CBE3 #E3638B #E3BB63

monochromatic

#1F92AD #2FBADA #63CBE3 #97DCEC #CBEEF6

Accessibility & contrast

On white

1.88

#63CBE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.18

#63CBE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBE3

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBE3	#FFFFFF	#000000	##000000
##63CBE3	1.00	1.88	11.18	11.18
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.18	21.00	1.00	1.00
##000000	11.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAC5E4

Deuteranopia (green-blind)

#A7B7E3

Tritanopia (blue-blind)

#00D4D2

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #63cbe3;
/* rgb */ color: rgb(99, 203, 227);
/* oklch */ color: oklch(78.9% 0.102 215.0);

Tailwind

colors: {
  custom: {
    50: '#9adbeb',
    500: '#63cbe3',
    950: '#000000',
  },
}

SCSS

$custom: #63cbe3;
$custom-light: #9adbeb;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbe3",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 227
  },
  "hsl": {
    "h": 191.25,
    "s": 69.565,
    "l": 63.922
  },
  "oklch": {
    "l": 0.78927,
    "c": 0.10173,
    "h": 215
  },
  "luminance": 0.50911
}

Semantic roles & 50–950 ramp

primary

#63CBE3

secondary

#AE513C

accent

#3814D2

background

#FCFEFE

surface

#F5FBFD

border

#CFD4D5

text

#0F1516

muted

#808484

Preview Lab

Preview with #63CBE3

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

Preview Lab → · Contrast checker → · Palette generator →