#63B7EC#63B7EC

#63B7EC is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.8% C 0.112 H 238.4°. Best body text is #000000 at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#63B7EC
RGB	rgb(99, 183, 236)
HSL	hsl(203, 78%, 66%)
HSV	hsv(203, 58%, 93%)
CMYK	cmyk(58.1%, 22.5%, 0%, 7.5%)
CIE-LAB	lab(71.26, -10.35, -34.13)
CIE-LCH	lch(71.26, 35.67, 253.13°)
OKLab	oklab(74.76% -0.0587 -0.0955)
OKLCH	oklch(74.76% 0.112 238.4)
XYZ	xyz(37.2137, 42.5723, 85.5968)
Luminance	0.4258 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7EC #EC9863

analogous

#63ECDD #63B7EC #6372EC

triadic

#63B7EC #EC63B7 #B7EC63

tetradic

#63B7EC #DD63EC #EC9863 #72EC63

square

#63B7EC #DD63EC #EC9863 #72EC63

split-complementary

#63B7EC #EC6372 #ECDD63

monochromatic

#177DBE #2C9EE5 #63B7EC #9AD0F3 #D0E9F9

Accessibility & contrast

On white

2.21

#63B7EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.52

#63B7EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7EC

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7EC	#FFFFFF	#000000	##000000
##63B7EC	1.00	2.21	9.52	9.52
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.52	21.00	1.00	1.00
##000000	9.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB6EF

Deuteranopia (green-blind)

#8CA8EB

Tritanopia (blue-blind)

#00C4C9

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b7ec;
/* rgb */ color: rgb(99, 183, 236);
/* oklch */ color: oklch(74.8% 0.112 238.4);

Tailwind

colors: {
  custom: {
    50: '#9accf2',
    500: '#63b7ec',
    950: '#000000',
  },
}

SCSS

$custom: #63b7ec;
$custom-light: #9accf2;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7ec",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 236
  },
  "hsl": {
    "h": 203.212,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.74764,
    "c": 0.11212,
    "h": 238.4
  },
  "luminance": 0.42576
}

Semantic roles & 50–950 ramp

primary

#63B7EC

secondary

#ECD0BF

accent

#5B0BDB

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B7EC

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

Preview Lab → · Contrast checker → · Palette generator →