#63B4E0#63B4E0

#63B4E0 is a light, moderate cyan. Relative luminance 0.407; OKLCH L 73.6% C 0.102 H 234.2°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#63B4E0
RGB	rgb(99, 180, 224)
HSL	hsl(201, 67%, 63%)
HSV	hsv(201, 56%, 88%)
CMYK	cmyk(55.8%, 19.6%, 0%, 12.2%)
CIE-LAB	lab(69.95, -12.36, -29.63)
CIE-LCH	lch(69.95, 32.11, 247.35°)
OKLab	oklab(73.56% -0.0595 -0.0826)
OKLCH	oklch(73.56% 0.102 234.2)
XYZ	xyz(34.9163, 40.6738, 76.5174)
Luminance	0.4068 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4E0 #E08F63

analogous

#63E0CD #63B4E0 #6375E0

triadic

#63B4E0 #E063B4 #B4E063

tetradic

#63B4E0 #CD63E0 #E08F63 #75E063

square

#63B4E0 #CD63E0 #E08F63 #75E063

split-complementary

#63B4E0 #E06375 #E0CD63

monochromatic

#2178A7 #309BD6 #63B4E0 #96CDEA #C9E5F4

Accessibility & contrast

On white

2.30

#63B4E0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#63B4E0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4E0

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4E0	#FFFFFF	#000000	##000000
##63B4E0	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB2E2

Deuteranopia (green-blind)

#8EA5DF

Tritanopia (blue-blind)

#00C0C3

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b4e0;
/* rgb */ color: rgb(99, 180, 224);
/* oklch */ color: oklch(73.6% 0.102 234.2);

Tailwind

colors: {
  custom: {
    50: '#98cae9',
    500: '#63b4e0',
    950: '#000000',
  },
}

SCSS

$custom: #63b4e0;
$custom-light: #98cae9;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4e0",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 224
  },
  "hsl": {
    "h": 201.12,
    "s": 66.845,
    "l": 63.333
  },
  "oklch": {
    "l": 0.73564,
    "c": 0.10185,
    "h": 234.2
  },
  "luminance": 0.40677
}

Semantic roles & 50–950 ramp

primary

#63B4E0

secondary

#E6C9B9

accent

#5817CF

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B4E0

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

Preview Lab → · Contrast checker → · Palette generator →