#63B2E6#63B2E6

#63B2E6 is a light, moderate cyan. Relative luminance 0.402; OKLCH L 73.4% C 0.109 H 239.4°. Best body text is #000000 at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#63B2E6
RGB	rgb(99, 178, 230)
HSL	hsl(204, 72%, 65%)
HSV	hsv(204, 57%, 90%)
CMYK	cmyk(57%, 22.6%, 0%, 9.8%)
CIE-LAB	lab(69.61, -9.48, -33.42)
CIE-LCH	lch(69.61, 34.74, 254.17°)
OKLab	oklab(73.38% -0.0553 -0.0935)
OKLCH	oklch(73.38% 0.109 239.4)
XYZ	xyz(35.3436, 40.2034, 80.7450)
Luminance	0.4021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B2E6 #E69763

analogous

#63E6D9 #63B2E6 #6371E6

triadic

#63B2E6 #E663B2 #B2E663

tetradic

#63B2E6 #D963E6 #E69763 #71E663

square

#63B2E6 #D963E6 #E69763 #71E663

split-complementary

#63B2E6 #E66371 #E6D963

monochromatic

#1D77B2 #2E98DE #63B2E6 #98CCEE #CCE6F7

Accessibility & contrast

On white

2.32

#63B2E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.04

#63B2E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B2E6

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B2E6	#FFFFFF	#000000	##000000
##63B2E6	1.00	2.32	9.04	9.04
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.04	21.00	1.00	1.00
##000000	9.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB2E8

Deuteranopia (green-blind)

#89A4E5

Tritanopia (blue-blind)

#00BFC4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b2e6;
/* rgb */ color: rgb(99, 178, 230);
/* oklch */ color: oklch(73.4% 0.109 239.4);

Tailwind

colors: {
  custom: {
    50: '#99c9ee',
    500: '#63b2e6',
    950: '#000000',
  },
}

SCSS

$custom: #63b2e6;
$custom-light: #99c9ee;
$custom-dark: #000000;

JSON

{
  "hex": "#63b2e6",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 230
  },
  "hsl": {
    "h": 203.817,
    "s": 72.376,
    "l": 64.51
  },
  "oklch": {
    "l": 0.73378,
    "c": 0.10863,
    "h": 239.4
  },
  "luminance": 0.40207
}

Semantic roles & 50–950 ramp

primary

#63B2E6

secondary

#E9CEBC

accent

#5F11D4

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B2E6

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

Preview Lab → · Contrast checker → · Palette generator →