#63B1ED#63B1ED

#63B1ED is a light, moderate cyan. Relative luminance 0.402; OKLCH L 73.5% C 0.117 H 243.6°. Best body text is #000000 at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#63B1ED
RGB	rgb(99, 177, 237)
HSL	hsl(206, 79%, 66%)
HSV	hsv(206, 58%, 93%)
CMYK	cmyk(58.2%, 25.3%, 0%, 7.1%)
CIE-LAB	lab(69.62, -6.78, -37.23)
CIE-LCH	lch(69.62, 37.84, 259.68°)
OKLab	oklab(73.47% -0.052 -0.1045)
OKLCH	oklch(73.47% 0.117 243.6)
XYZ	xyz(36.1482, 40.2080, 85.9603)
Luminance	0.4021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B1ED #ED9F63

analogous

#63EDE4 #63B1ED #636CED

triadic

#63B1ED #ED63B1 #B1ED63

tetradic

#63B1ED #E463ED #ED9F63 #6CED63

square

#63B1ED #E463ED #ED9F63 #6CED63

split-complementary

#63B1ED #ED636C #EDE463

monochromatic

#1676C0 #2C96E7 #63B1ED #9ACCF3 #D1E8FA

Accessibility & contrast

On white

2.32

#63B1ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.04

#63B1ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B1ED

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B1ED	#FFFFFF	#000000	##000000
##63B1ED	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)

#97B2F0

Deuteranopia (green-blind)

#84A4EC

Tritanopia (blue-blind)

#00C0C6

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b1ed;
/* rgb */ color: rgb(99, 177, 237);
/* oklch */ color: oklch(73.5% 0.117 243.6);

Tailwind

colors: {
  custom: {
    50: '#9ac8f3',
    500: '#63b1ed',
    950: '#000000',
  },
}

SCSS

$custom: #63b1ed;
$custom-light: #9ac8f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63b1ed",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 237
  },
  "hsl": {
    "h": 206.087,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.73474,
    "c": 0.11669,
    "h": 243.6
  },
  "luminance": 0.40211
}

Semantic roles & 50–950 ramp

primary

#63B1ED

secondary

#EDD3BF

accent

#650ADC

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B1ED

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

Preview Lab → · Contrast checker → · Palette generator →