#63B7EA#63B7EA

#63B7EA is a light, moderate cyan. Relative luminance 0.425; OKLCH L 74.7% C 0.110 H 237.4°. Best body text is #000000 at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#63B7EA
RGB	rgb(99, 183, 234)
HSL	hsl(203, 76%, 65%)
HSV	hsv(203, 58%, 92%)
CMYK	cmyk(57.7%, 21.8%, 0%, 8.2%)
CIE-LAB	lab(71.18, -10.96, -33.17)
CIE-LCH	lch(71.18, 34.93, 251.71°)
OKLab	oklab(74.68% -0.0593 -0.0928)
OKLCH	oklch(74.68% 0.11 237.4)
XYZ	xyz(36.9248, 42.4567, 84.0750)
Luminance	0.4246 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7EA #EA9663

analogous

#63EADA #63B7EA #6373EA

triadic

#63B7EA #EA63B7 #B7EA63

tetradic

#63B7EA #DA63EA #EA9663 #73EA63

square

#63B7EA #DA63EA #EA9663 #73EA63

split-complementary

#63B7EA #EA6373 #EADA63

monochromatic

#197DBA #2D9EE3 #63B7EA #99D0F1 #CFE9F9

Accessibility & contrast

On white

2.21

#63B7EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.49

#63B7EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7EA

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7EA	#FFFFFF	#000000	##000000
##63B7EA	1.00	2.21	9.49	9.49
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.49	21.00	1.00	1.00
##000000	9.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB6EC

Deuteranopia (green-blind)

#8DA8E9

Tritanopia (blue-blind)

#00C4C8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b7ea;
/* rgb */ color: rgb(99, 183, 234);
/* oklch */ color: oklch(74.7% 0.110 237.4);

Tailwind

colors: {
  custom: {
    50: '#99ccf1',
    500: '#63b7ea',
    950: '#000000',
  },
}

SCSS

$custom: #63b7ea;
$custom-light: #99ccf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7ea",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 234
  },
  "hsl": {
    "h": 202.667,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74675,
    "c": 0.11013,
    "h": 237.4
  },
  "luminance": 0.4246
}

Semantic roles & 50–950 ramp

primary

#63B7EA

secondary

#EBCFBE

accent

#5A0DD8

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B7EA

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

Preview Lab → · Contrast checker → · Palette generator →