#63B2EC#63B2EC

#63B2EC is a light, moderate cyan. Relative luminance 0.406; OKLCH L 73.7% C 0.115 H 242.4°. Best body text is #000000 at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#63B2EC
RGB	rgb(99, 178, 236)
HSL	hsl(205, 78%, 66%)
HSV	hsv(205, 58%, 93%)
CMYK	cmyk(58.1%, 24.6%, 0%, 7.5%)
CIE-LAB	lab(69.86, -7.64, -36.31)
CIE-LCH	lch(69.86, 37.11, 258.12°)
OKLab	oklab(73.65% -0.0533 -0.1018)
OKLCH	oklch(73.65% 0.115 242.4)
XYZ	xyz(36.2007, 40.5463, 85.2591)
Luminance	0.4055 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B2EC #EC9D63

analogous

#63ECE1 #63B2EC #636DEC

triadic

#63B2EC #EC63B2 #B2EC63

tetradic

#63B2EC #E163EC #EC9D63 #6DEC63

square

#63B2EC #E163EC #EC9D63 #6DEC63

split-complementary

#63B2EC #EC636D #ECE163

monochromatic

#1777BE #2C97E5 #63B2EC #9ACDF3 #D0E8F9

Accessibility & contrast

On white

2.31

#63B2EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.11

#63B2EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B2EC

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B2EC	#FFFFFF	#000000	##000000
##63B2EC	1.00	2.31	9.11	9.11
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.11	21.00	1.00	1.00
##000000	9.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98B2EF

Deuteranopia (green-blind)

#86A5EB

Tritanopia (blue-blind)

#00C0C6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b2ec;
/* rgb */ color: rgb(99, 178, 236);
/* oklch */ color: oklch(73.7% 0.115 242.4);

Tailwind

colors: {
  custom: {
    50: '#9ac8f2',
    500: '#63b2ec',
    950: '#000000',
  },
}

SCSS

$custom: #63b2ec;
$custom-light: #9ac8f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63b2ec",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 236
  },
  "hsl": {
    "h": 205.401,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.7365,
    "c": 0.11496,
    "h": 242.4
  },
  "luminance": 0.4055
}

Semantic roles & 50–950 ramp

primary

#63B2EC

secondary

#ECD2BF

accent

#630BDB

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B2EC

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

Preview Lab → · Contrast checker → · Palette generator →