#63B2E8#63B2E8

#63B2E8 is a light, moderate cyan. Relative luminance 0.403; OKLCH L 73.5% C 0.111 H 240.4°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#63B2E8
RGB	rgb(99, 178, 232)
HSL	hsl(204, 74%, 65%)
HSV	hsv(204, 57%, 91%)
CMYK	cmyk(57.3%, 23.3%, 0%, 9%)
CIE-LAB	lab(69.69, -8.87, -34.39)
CIE-LCH	lch(69.69, 35.51, 255.54°)
OKLab	oklab(73.47% -0.0546 -0.0963)
OKLCH	oklch(73.47% 0.111 240.4)
XYZ	xyz(35.6261, 40.3164, 82.2327)
Luminance	0.4032 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B2E8 #E89963

analogous

#63E8DC #63B2E8 #636FE8

triadic

#63B2E8 #E863B2 #B2E863

tetradic

#63B2E8 #DC63E8 #E89963 #6FE863

square

#63B2E8 #DC63E8 #E89963 #6FE863

split-complementary

#63B2E8 #E8636F #E8DC63

monochromatic

#1B77B6 #2E98E0 #63B2E8 #98CCF0 #CEE7F8

Accessibility & contrast

On white

2.32

#63B2E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#63B2E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B2E8

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B2E8	#FFFFFF	#000000	##000000
##63B2E8	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AB2EB

Deuteranopia (green-blind)

#88A4E7

Tritanopia (blue-blind)

#00BFC4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b2e8;
/* rgb */ color: rgb(99, 178, 232);
/* oklch */ color: oklch(73.5% 0.111 240.4);

Tailwind

colors: {
  custom: {
    50: '#99c8ef',
    500: '#63b2e8',
    950: '#000000',
  },
}

SCSS

$custom: #63b2e8;
$custom-light: #99c8ef;
$custom-dark: #000000;

JSON

{
  "hex": "#63b2e8",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 232
  },
  "hsl": {
    "h": 204.361,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.73468,
    "c": 0.11071,
    "h": 240.4
  },
  "luminance": 0.4032
}

Semantic roles & 50–950 ramp

primary

#63B2E8

secondary

#EACFBD

accent

#600FD6

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B2E8

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

Preview Lab → · Contrast checker → · Palette generator →