#63B7F1#63B7F1

#63B7F1 is a light, moderate cyan. Relative luminance 0.429; OKLCH L 75.0% C 0.117 H 240.9°. Best body text is #000000 at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#63B7F1
RGB	rgb(99, 183, 241)
HSL	hsl(205, 84%, 67%)
HSV	hsv(205, 59%, 95%)
CMYK	cmyk(58.9%, 24.1%, 0%, 5.5%)
CIE-LAB	lab(71.46, -8.82, -36.53)
CIE-LCH	lch(71.46, 37.58, 256.43°)
OKLab	oklab(74.99% -0.057 -0.1024)
OKLCH	oklch(74.99% 0.117 240.9)
XYZ	xyz(37.9503, 42.8669, 89.4762)
Luminance	0.4287 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7F1 #F19D63

analogous

#63F1E4 #63B7F1 #6370F1

triadic

#63B7F1 #F163B7 #B7F163

tetradic

#63B7F1 #E463F1 #F19D63 #70F163

square

#63B7F1 #E463F1 #F19D63 #70F163

split-complementary

#63B7F1 #F16370 #F1E463

monochromatic

#127DC8 #2B9DEC #63B7F1 #9BD1F6 #D3EBFB

Accessibility & contrast

On white

2.19

#63B7F1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.57

#63B7F1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7F1

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7F1	#FFFFFF	#000000	##000000
##63B7F1	1.00	2.19	9.57	9.57
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.57	21.00	1.00	1.00
##000000	9.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB7F4

Deuteranopia (green-blind)

#8AA9F0

Tritanopia (blue-blind)

#00C5CB

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63b7f1;
/* rgb */ color: rgb(99, 183, 241);
/* oklch */ color: oklch(75.0% 0.117 240.9);

Tailwind

colors: {
  custom: {
    50: '#9accf6',
    500: '#63b7f1',
    950: '#000000',
  },
}

SCSS

$custom: #63b7f1;
$custom-light: #9accf6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7f1",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 241
  },
  "hsl": {
    "h": 204.507,
    "s": 83.529,
    "l": 66.667
  },
  "oklch": {
    "l": 0.74989,
    "c": 0.11725,
    "h": 240.9
  },
  "luminance": 0.4287
}

Semantic roles & 50–950 ramp

primary

#63B7F1

secondary

#EFD4C1

accent

#5F06E0

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B7F1

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

Preview Lab → · Contrast checker → · Palette generator →