#63B4EA#63B4EA

#63B4EA is a light, moderate cyan. Relative luminance 0.412; OKLCH L 74.0% C 0.112 H 239.8°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#63B4EA
RGB	rgb(99, 180, 234)
HSL	hsl(204, 76%, 65%)
HSV	hsv(204, 58%, 92%)
CMYK	cmyk(57.7%, 23.1%, 0%, 8.2%)
CIE-LAB	lab(70.34, -9.34, -34.48)
CIE-LCH	lch(70.34, 35.72, 254.84°)
OKLab	oklab(74% -0.0561 -0.0965)
OKLCH	oklch(74% 0.112 239.8)
XYZ	xyz(36.3126, 41.2323, 83.8710)
Luminance	0.4124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4EA #EA9963

analogous

#63EADC #63B4EA #6370EA

triadic

#63B4EA #EA63B4 #B4EA63

tetradic

#63B4EA #DC63EA #EA9963 #70EA63

square

#63B4EA #DC63EA #EA9963 #70EA63

split-complementary

#63B4EA #EA6370 #EADC63

monochromatic

#1979BA #2D9AE3 #63B4EA #99CEF1 #CFE8F9

Accessibility & contrast

On white

2.27

#63B4EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.25

#63B4EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4EA

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4EA	#FFFFFF	#000000	##000000
##63B4EA	1.00	2.27	9.25	9.25
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.25	21.00	1.00	1.00
##000000	9.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB4ED

Deuteranopia (green-blind)

#89A6E9

Tritanopia (blue-blind)

#00C2C6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #63b4ea;
/* rgb */ color: rgb(99, 180, 234);
/* oklch */ color: oklch(74.0% 0.112 239.8);

Tailwind

colors: {
  custom: {
    50: '#99caf1',
    500: '#63b4ea',
    950: '#000000',
  },
}

SCSS

$custom: #63b4ea;
$custom-light: #99caf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4ea",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 234
  },
  "hsl": {
    "h": 204,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74004,
    "c": 0.11167,
    "h": 239.8
  },
  "luminance": 0.41236
}

Semantic roles & 50–950 ramp

primary

#63B4EA

secondary

#EBD0BE

accent

#5E0DD8

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B4EA

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

Preview Lab → · Contrast checker → · Palette generator →