#63B6EA#63B6EA

#63B6EA is a light, moderate cyan. Relative luminance 0.420; OKLCH L 74.5% C 0.111 H 238.2°. Best body text is #000000 at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#63B6EA
RGB	rgb(99, 182, 234)
HSL	hsl(203, 76%, 65%)
HSV	hsv(203, 58%, 92%)
CMYK	cmyk(57.7%, 22.2%, 0%, 8.2%)
CIE-LAB	lab(70.90, -10.42, -33.60)
CIE-LCH	lch(70.90, 35.18, 252.77°)
OKLab	oklab(74.45% -0.0583 -0.094)
OKLCH	oklch(74.45% 0.111 238.2)
XYZ	xyz(36.7193, 42.0457, 84.0065)
Luminance	0.4205 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B6EA #EA9763

analogous

#63EADA #63B6EA #6372EA

triadic

#63B6EA #EA63B6 #B6EA63

tetradic

#63B6EA #DA63EA #EA9763 #72EA63

square

#63B6EA #DA63EA #EA9763 #72EA63

split-complementary

#63B6EA #EA6372 #EADA63

monochromatic

#197CBA #2D9DE3 #63B6EA #99CFF1 #CFE8F9

Accessibility & contrast

On white

2.23

#63B6EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.41

#63B6EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B6EA

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B6EA	#FFFFFF	#000000	##000000
##63B6EA	1.00	2.23	9.41	9.41
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.41	21.00	1.00	1.00
##000000	9.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB5EC

Deuteranopia (green-blind)

#8CA7E9

Tritanopia (blue-blind)

#00C3C7

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #63b6ea;
/* rgb */ color: rgb(99, 182, 234);
/* oklch */ color: oklch(74.5% 0.111 238.2);

Tailwind

colors: {
  custom: {
    50: '#99cbf1',
    500: '#63b6ea',
    950: '#000000',
  },
}

SCSS

$custom: #63b6ea;
$custom-light: #99cbf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b6ea",
  "rgb": {
    "r": 99,
    "g": 182,
    "b": 234
  },
  "hsl": {
    "h": 203.111,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74451,
    "c": 0.11063,
    "h": 238.2
  },
  "luminance": 0.42049
}

Semantic roles & 50–950 ramp

primary

#63B6EA

secondary

#EBCFBE

accent

#5B0DD8

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B6EA

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

Preview Lab → · Contrast checker → · Palette generator →