#63B7F3#63B7F3

#63B7F3 is a light, moderate cyan. Relative luminance 0.430; OKLCH L 75.1% C 0.119 H 241.8°. Best body text is #000000 at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#63B7F3
RGB	rgb(99, 183, 243)
HSL	hsl(205, 86%, 67%)
HSV	hsv(205, 59%, 95%)
CMYK	cmyk(59.3%, 24.7%, 0%, 4.7%)
CIE-LAB	lab(71.55, -8.20, -37.49)
CIE-LCH	lch(71.55, 38.38, 257.66°)
OKLab	oklab(75.08% -0.0564 -0.1052)
OKLCH	oklch(75.08% 0.119 241.8)
XYZ	xyz(38.2507, 42.9871, 91.0582)
Luminance	0.4299 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7F3 #F39F63

analogous

#63F3E7 #63B7F3 #636FF3

triadic

#63B7F3 #F363B7 #B7F363

tetradic

#63B7F3 #E763F3 #F39F63 #6FF363

square

#63B7F3 #E763F3 #F39F63 #6FF363

split-complementary

#63B7F3 #F3636F #F3E763

monochromatic

#107DCC #2A9DEF #63B7F3 #9CD1F7 #D5EBFC

Accessibility & contrast

On white

2.19

#63B7F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.60

#63B7F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7F3

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7F3	#FFFFFF	#000000	##000000
##63B7F3	1.00	2.19	9.60	9.60
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.60	21.00	1.00	1.00
##000000	9.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB7F6

Deuteranopia (green-blind)

#89A9F2

Tritanopia (blue-blind)

#00C6CB

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63b7f3;
/* rgb */ color: rgb(99, 183, 243);
/* oklch */ color: oklch(75.1% 0.119 241.8);

Tailwind

colors: {
  custom: {
    50: '#9accf7',
    500: '#63b7f3',
    950: '#000000',
  },
}

SCSS

$custom: #63b7f3;
$custom-light: #9accf7;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7f3",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 243
  },
  "hsl": {
    "h": 205,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.7508,
    "c": 0.11937,
    "h": 241.8
  },
  "luminance": 0.42991
}

Semantic roles & 50–950 ramp

primary

#63B7F3

secondary

#F0D5C2

accent

#6003E2

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B7F3

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

Preview Lab → · Contrast checker → · Palette generator →