#63B0EC#63B0EC

#63B0EC is a light, moderate cyan. Relative luminance 0.398; OKLCH L 73.2% C 0.116 H 243.9°. Best body text is #000000 at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#63B0EC
RGB	rgb(99, 176, 236)
HSL	hsl(206, 78%, 66%)
HSV	hsv(206, 58%, 93%)
CMYK	cmyk(58.1%, 25.4%, 0%, 7.5%)
CIE-LAB	lab(69.30, -6.54, -37.19)
CIE-LCH	lch(69.30, 37.76, 260.02°)
OKLab	oklab(73.21% -0.0512 -0.1044)
OKLCH	oklch(73.21% 0.116 243.9)
XYZ	xyz(35.8057, 39.7562, 85.1274)
Luminance	0.3976 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B0EC #EC9F63

analogous

#63ECE3 #63B0EC #636BEC

triadic

#63B0EC #EC63B0 #B0EC63

tetradic

#63B0EC #E363EC #EC9F63 #6BEC63

square

#63B0EC #E363EC #EC9F63 #6BEC63

split-complementary

#63B0EC #EC636B #ECE363

monochromatic

#1775BE #2C94E5 #63B0EC #9ACCF3 #D0E7F9

Accessibility & contrast

On white

2.35

#63B0EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.95

#63B0EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0EC

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B0EC	#FFFFFF	#000000	##000000
##63B0EC	1.00	2.35	8.95	8.95
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.95	21.00	1.00	1.00
##000000	8.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B1EF

Deuteranopia (green-blind)

#83A3EB

Tritanopia (blue-blind)

#00BFC5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b0ec;
/* rgb */ color: rgb(99, 176, 236);
/* oklch */ color: oklch(73.2% 0.116 243.9);

Tailwind

colors: {
  custom: {
    50: '#9ac7f2',
    500: '#63b0ec',
    950: '#000000',
  },
}

SCSS

$custom: #63b0ec;
$custom-light: #9ac7f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63b0ec",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 236
  },
  "hsl": {
    "h": 206.277,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.73206,
    "c": 0.11624,
    "h": 243.9
  },
  "luminance": 0.39759
}

Semantic roles & 50–950 ramp

primary

#63B0EC

secondary

#ECD3BF

accent

#660BDB

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B0EC

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

Preview Lab → · Contrast checker → · Palette generator →