#63ACEE#63ACEE

#63ACEE is a light, vivid cyan. Relative luminance 0.383; OKLCH L 72.4% C 0.121 H 247.6°. Best body text is #000000 at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#63ACEE
RGB	rgb(99, 172, 238)
HSL	hsl(208, 80%, 66%)
HSV	hsv(208, 58%, 93%)
CMYK	cmyk(58.4%, 27.7%, 0%, 6.7%)
CIE-LAB	lab(68.26, -3.71, -39.89)
CIE-LCH	lch(68.26, 40.06, 264.69°)
OKLab	oklab(72.42% -0.0463 -0.1122)
OKLCH	oklch(72.42% 0.121 247.6)
XYZ	xyz(35.3251, 38.3275, 86.4087)
Luminance	0.3833 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ACEE #EEA563

analogous

#63EEEA #63ACEE #6366EE

triadic

#63ACEE #EE63AC #ACEE63

tetradic

#63ACEE #EA63EE #EEA563 #66EE63

square

#63ACEE #EA63EE #EEA563 #66EE63

split-complementary

#63ACEE #EE6366 #EEEA63

monochromatic

#1570C2 #2C8FE8 #63ACEE #9AC9F4 #D1E7FA

Accessibility & contrast

On white

2.42

#63ACEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.67

#63ACEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ACEE

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ACEE	#FFFFFF	#000000	##000000
##63ACEE	1.00	2.42	8.67	8.67
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.67	21.00	1.00	1.00
##000000	8.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90AEF1

Deuteranopia (green-blind)

#7DA0ED

Tritanopia (blue-blind)

#00BCC3

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #63acee;
/* rgb */ color: rgb(99, 172, 238);
/* oklch */ color: oklch(72.4% 0.121 247.6);

Tailwind

colors: {
  custom: {
    50: '#9ac4f4',
    500: '#63acee',
    950: '#000000',
  },
}

SCSS

$custom: #63acee;
$custom-light: #9ac4f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63acee",
  "rgb": {
    "r": 99,
    "g": 172,
    "b": 238
  },
  "hsl": {
    "h": 208.489,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.72419,
    "c": 0.12138,
    "h": 247.6
  },
  "luminance": 0.38331
}

Semantic roles & 50–950 ramp

primary

#63ACEE

secondary

#EDD5C0

accent

#6D09DD

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63ACEE

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

Preview Lab → · Contrast checker → · Palette generator →