#63B7E8#63B7E8

#63B7E8 is a light, moderate cyan. Relative luminance 0.423; OKLCH L 74.6% C 0.108 H 236.3°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#63B7E8
RGB	rgb(99, 183, 232)
HSL	hsl(202, 74%, 65%)
HSV	hsv(202, 57%, 91%)
CMYK	cmyk(57.3%, 21.1%, 0%, 9%)
CIE-LAB	lab(71.11, -11.57, -32.20)
CIE-LCH	lch(71.11, 34.21, 250.24°)
OKLab	oklab(74.59% -0.06 -0.09)
OKLCH	oklch(74.59% 0.108 236.3)
XYZ	xyz(36.6391, 42.3424, 82.5704)
Luminance	0.4235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7E8 #E89463

analogous

#63E8D6 #63B7E8 #6375E8

triadic

#63B7E8 #E863B7 #B7E863

tetradic

#63B7E8 #D663E8 #E89463 #75E863

square

#63B7E8 #D663E8 #E89463 #75E863

split-complementary

#63B7E8 #E86375 #E8D663

monochromatic

#1B7DB6 #2E9EE0 #63B7E8 #98D0F0 #CEE8F8

Accessibility & contrast

On white

2.22

#63B7E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#63B7E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7E8

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7E8	#FFFFFF	#000000	##000000
##63B7E8	1.00	2.22	9.47	9.47
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.47	21.00	1.00	1.00
##000000	9.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B6EA

Deuteranopia (green-blind)

#8EA8E7

Tritanopia (blue-blind)

#00C4C7

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b7e8;
/* rgb */ color: rgb(99, 183, 232);
/* oklch */ color: oklch(74.6% 0.108 236.3);

Tailwind

colors: {
  custom: {
    50: '#99ccef',
    500: '#63b7e8',
    950: '#000000',
  },
}

SCSS

$custom: #63b7e8;
$custom-light: #99ccef;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7e8",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 232
  },
  "hsl": {
    "h": 202.105,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.74587,
    "c": 0.10818,
    "h": 236.3
  },
  "luminance": 0.42346
}

Semantic roles & 50–950 ramp

primary

#63B7E8

secondary

#EACDBD

accent

#590FD6

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B7E8

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

Preview Lab → · Contrast checker → · Palette generator →