#63B0EE#63B0EE

#63B0EE is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.3% C 0.118 H 244.7°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#63B0EE
RGB	rgb(99, 176, 238)
HSL	hsl(207, 80%, 66%)
HSV	hsv(207, 58%, 93%)
CMYK	cmyk(58.4%, 26.1%, 0%, 6.7%)
CIE-LAB	lab(69.38, -5.92, -38.15)
CIE-LCH	lch(69.38, 38.60, 261.18°)
OKLab	oklab(73.3% -0.0506 -0.1071)
OKLCH	oklch(73.3% 0.118 244.7)
XYZ	xyz(36.0979, 39.8731, 86.6663)
Luminance	0.3988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B0EE #EEA163

analogous

#63EEE7 #63B0EE #636AEE

triadic

#63B0EE #EE63B0 #B0EE63

tetradic

#63B0EE #E763EE #EEA163 #6AEE63

square

#63B0EE #E763EE #EEA163 #6AEE63

split-complementary

#63B0EE #EE636A #EEE763

monochromatic

#1575C2 #2C94E8 #63B0EE #9ACCF4 #D1E8FA

Accessibility & contrast

On white

2.34

#63B0EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.98

#63B0EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0EE

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B0EE	#FFFFFF	#000000	##000000
##63B0EE	1.00	2.34	8.98	8.98
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.98	21.00	1.00	1.00
##000000	8.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95B1F1

Deuteranopia (green-blind)

#82A3ED

Tritanopia (blue-blind)

#00BFC5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b0ee;
/* rgb */ color: rgb(99, 176, 238);
/* oklch */ color: oklch(73.3% 0.118 244.7);

Tailwind

colors: {
  custom: {
    50: '#9ac7f3',
    500: '#63b0ee',
    950: '#000000',
  },
}

SCSS

$custom: #63b0ee;
$custom-light: #9ac7f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63b0ee",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 238
  },
  "hsl": {
    "h": 206.763,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.733,
    "c": 0.11847,
    "h": 244.7
  },
  "luminance": 0.39876
}

Semantic roles & 50–950 ramp

primary

#63B0EE

secondary

#EDD4C0

accent

#6709DD

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B0EE

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

Preview Lab → · Contrast checker → · Palette generator →