#63B7EE#63B7EE

#63B7EE is a light, moderate cyan. Relative luminance 0.427; OKLCH L 74.9% C 0.114 H 239.4°. Best body text is #000000 at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#63B7EE
RGB	rgb(99, 183, 238)
HSL	hsl(204, 80%, 66%)
HSV	hsv(204, 58%, 93%)
CMYK	cmyk(58.4%, 23.1%, 0%, 6.7%)
CIE-LAB	lab(71.34, -9.74, -35.09)
CIE-LCH	lch(71.34, 36.42, 254.49°)
OKLab	oklab(74.85% -0.058 -0.0983)
OKLCH	oklch(74.85% 0.114 239.4)
XYZ	xyz(37.5059, 42.6892, 87.1356)
Luminance	0.4269 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7EE #EE9A63

analogous

#63EEDF #63B7EE #6371EE

triadic

#63B7EE #EE63B7 #B7EE63

tetradic

#63B7EE #DF63EE #EE9A63 #71EE63

square

#63B7EE #DF63EE #EE9A63 #71EE63

split-complementary

#63B7EE #EE6371 #EEDF63

monochromatic

#157DC2 #2C9EE8 #63B7EE #9AD0F4 #D1EAFA

Accessibility & contrast

On white

2.20

#63B7EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.54

#63B7EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7EE

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7EE	#FFFFFF	#000000	##000000
##63B7EE	1.00	2.20	9.54	9.54
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.54	21.00	1.00	1.00
##000000	9.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB7F1

Deuteranopia (green-blind)

#8BA8ED

Tritanopia (blue-blind)

#00C5CA

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63b7ee;
/* rgb */ color: rgb(99, 183, 238);
/* oklch */ color: oklch(74.9% 0.114 239.4);

Tailwind

colors: {
  custom: {
    50: '#9accf3',
    500: '#63b7ee',
    950: '#000000',
  },
}

SCSS

$custom: #63b7ee;
$custom-light: #9accf3;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7ee",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 238
  },
  "hsl": {
    "h": 203.741,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.74853,
    "c": 0.11415,
    "h": 239.4
  },
  "luminance": 0.42693
}

Semantic roles & 50–950 ramp

primary

#63B7EE

secondary

#EDD2C0

accent

#5D09DD

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B7EE

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

Preview Lab → · Contrast checker → · Palette generator →