#63B6EB#63B6EB

#63B6EB is a light, moderate cyan. Relative luminance 0.421; OKLCH L 74.5% C 0.112 H 238.7°. Best body text is #000000 at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#63B6EB
RGB	rgb(99, 182, 235)
HSL	hsl(203, 77%, 65%)
HSV	hsv(203, 58%, 92%)
CMYK	cmyk(57.9%, 22.6%, 0%, 7.8%)
CIE-LAB	lab(70.94, -10.12, -34.08)
CIE-LCH	lch(70.94, 35.55, 253.47°)
OKLab	oklab(74.5% -0.0579 -0.0954)
OKLCH	oklch(74.5% 0.112 238.7)
XYZ	xyz(36.8633, 42.1033, 84.7652)
Luminance	0.4211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B6EB #EB9863

analogous

#63EBDC #63B6EB #6372EB

triadic

#63B6EB #EB63B6 #B6EB63

tetradic

#63B6EB #DC63EB #EB9863 #72EB63

square

#63B6EB #DC63EB #EB9863 #72EB63

split-complementary

#63B6EB #EB6372 #EBDC63

monochromatic

#187CBC #2D9DE4 #63B6EB #99CFF2 #CFE9F9

Accessibility & contrast

On white

2.23

#63B6EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.42

#63B6EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B6EB

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B6EB	#FFFFFF	#000000	##000000
##63B6EB	1.00	2.23	9.42	9.42
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.42	21.00	1.00	1.00
##000000	9.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB5EE

Deuteranopia (green-blind)

#8BA7EA

Tritanopia (blue-blind)

#00C3C8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b6eb;
/* rgb */ color: rgb(99, 182, 235);
/* oklch */ color: oklch(74.5% 0.112 238.7);

Tailwind

colors: {
  custom: {
    50: '#9acbf1',
    500: '#63b6eb',
    950: '#000000',
  },
}

SCSS

$custom: #63b6eb;
$custom-light: #9acbf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b6eb",
  "rgb": {
    "r": 99,
    "g": 182,
    "b": 235
  },
  "hsl": {
    "h": 203.382,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.74496,
    "c": 0.11163,
    "h": 238.7
  },
  "luminance": 0.42107
}

Semantic roles & 50–950 ramp

primary

#63B6EB

secondary

#ECD0BE

accent

#5C0CDA

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B6EB

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

Preview Lab → · Contrast checker → · Palette generator →