#63B1E8#63B1E8

#63B1E8 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.2% C 0.111 H 241.2°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#63B1E8
RGB	rgb(99, 177, 232)
HSL	hsl(205, 74%, 65%)
HSV	hsv(205, 57%, 91%)
CMYK	cmyk(57.3%, 23.7%, 0%, 9%)
CIE-LAB	lab(69.41, -8.32, -34.82)
CIE-LCH	lch(69.41, 35.80, 256.56°)
OKLab	oklab(73.25% -0.0536 -0.0975)
OKLCH	oklch(73.25% 0.111 241.2)
XYZ	xyz(35.4278, 39.9199, 82.1666)
Luminance	0.3992 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B1E8 #E89A63

analogous

#63E8DD #63B1E8 #636EE8

triadic

#63B1E8 #E863B1 #B1E863

tetradic

#63B1E8 #DD63E8 #E89A63 #6EE863

square

#63B1E8 #DD63E8 #E89A63 #6EE863

split-complementary

#63B1E8 #E8636E #E8DD63

monochromatic

#1B76B6 #2E96E0 #63B1E8 #98CCF0 #CEE6F8

Accessibility & contrast

On white

2.34

#63B1E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.98

#63B1E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B1E8

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B1E8	#FFFFFF	#000000	##000000
##63B1E8	1.00	2.34	8.98	8.98
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.98	21.00	1.00	1.00
##000000	8.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B1EB

Deuteranopia (green-blind)

#86A4E7

Tritanopia (blue-blind)

#00BFC4

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b1e8;
/* rgb */ color: rgb(99, 177, 232);
/* oklch */ color: oklch(73.2% 0.111 241.2);

Tailwind

colors: {
  custom: {
    50: '#99c8ef',
    500: '#63b1e8',
    950: '#000000',
  },
}

SCSS

$custom: #63b1e8;
$custom-light: #99c8ef;
$custom-dark: #000000;

JSON

{
  "hex": "#63b1e8",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 232
  },
  "hsl": {
    "h": 204.812,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.73245,
    "c": 0.11129,
    "h": 241.2
  },
  "luminance": 0.39923
}

Semantic roles & 50–950 ramp

primary

#63B1E8

secondary

#EACFBD

accent

#620FD6

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B1E8

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

Preview Lab → · Contrast checker → · Palette generator →