#63B2F1#63B2F1

#63B2F1 is a light, vivid cyan. Relative luminance 0.408; OKLCH L 73.9% C 0.120 H 244.5°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#63B2F1
RGB	rgb(99, 178, 241)
HSL	hsl(207, 84%, 67%)
HSV	hsv(207, 59%, 95%)
CMYK	cmyk(58.9%, 26.1%, 0%, 5.5%)
CIE-LAB	lab(70.06, -6.09, -38.71)
CIE-LCH	lch(70.06, 39.19, 261.06°)
OKLab	oklab(73.88% -0.0518 -0.1087)
OKLCH	oklch(73.88% 0.12 244.5)
XYZ	xyz(36.9373, 40.8409, 89.1386)
Luminance	0.4084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B2F1 #F1A263

analogous

#63F1E9 #63B2F1 #636BF1

triadic

#63B2F1 #F163B2 #B2F163

tetradic

#63B2F1 #E963F1 #F1A263 #6BF163

square

#63B2F1 #E963F1 #F1A263 #6BF163

split-complementary

#63B2F1 #F1636B #F1E963

monochromatic

#1277C8 #2B96EC #63B2F1 #9BCEF6 #D3E9FB

Accessibility & contrast

On white

2.29

#63B2F1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#63B2F1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B2F1

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B2F1	#FFFFFF	#000000	##000000
##63B2F1	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B3F4

Deuteranopia (green-blind)

#83A5F0

Tritanopia (blue-blind)

#00C1C8

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b2f1;
/* rgb */ color: rgb(99, 178, 241);
/* oklch */ color: oklch(73.9% 0.120 244.5);

Tailwind

colors: {
  custom: {
    50: '#9ac8f6',
    500: '#63b2f1',
    950: '#000000',
  },
}

SCSS

$custom: #63b2f1;
$custom-light: #9ac8f6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b2f1",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 241
  },
  "hsl": {
    "h": 206.62,
    "s": 83.529,
    "l": 66.667
  },
  "oklch": {
    "l": 0.73882,
    "c": 0.12044,
    "h": 244.5
  },
  "luminance": 0.40844
}

Semantic roles & 50–950 ramp

primary

#63B2F1

secondary

#EFD5C1

accent

#6606E0

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B2F1

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

Preview Lab → · Contrast checker → · Palette generator →