#63A5E7#63A5E7

#63A5E7 is a light, moderate cyan. Relative luminance 0.353; OKLCH L 70.5% C 0.119 H 249.8°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#63A5E7
RGB	rgb(99, 165, 231)
HSL	hsl(210, 73%, 65%)
HSV	hsv(210, 57%, 91%)
CMYK	cmyk(57.1%, 28.6%, 0%, 9.4%)
CIE-LAB	lab(66.00, -1.98, -39.58)
CIE-LCH	lch(66.00, 39.63, 267.14°)
OKLab	oklab(70.54% -0.0409 -0.1113)
OKLCH	oklch(70.54% 0.119 249.8)
XYZ	xyz(33.0193, 35.3296, 80.6650)
Luminance	0.3533 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A5E7 #E7A563

analogous

#63E7E7 #63A5E7 #6363E7

triadic

#63A5E7 #E763A5 #A5E763

tetradic

#63A5E7 #E763E7 #E7A563 #63E763

square

#63A5E7 #E763E7 #E7A563 #63E763

split-complementary

#63A5E7 #E76363 #E7E763

monochromatic

#1C68B4 #2E86DF #63A5E7 #98C4EF #CDE2F7

Accessibility & contrast

On white

2.60

#63A5E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.07

#63A5E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A5E7

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A5E7	#FFFFFF	#000000	##000000
##63A5E7	1.00	2.60	8.07	8.07
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.07	21.00	1.00	1.00
##000000	8.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89A8EA

Deuteranopia (green-blind)

#789BE6

Tritanopia (blue-blind)

#00B4BC

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63a5e7;
/* rgb */ color: rgb(99, 165, 231);
/* oklch */ color: oklch(70.5% 0.119 249.8);

Tailwind

colors: {
  custom: {
    50: '#99bfef',
    500: '#63a5e7',
    950: '#000000',
  },
}

SCSS

$custom: #63a5e7;
$custom-light: #99bfef;
$custom-dark: #000000;

JSON

{
  "hex": "#63a5e7",
  "rgb": {
    "r": 99,
    "g": 165,
    "b": 231
  },
  "hsl": {
    "h": 210,
    "s": 73.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.70543,
    "c": 0.11862,
    "h": 249.8
  },
  "luminance": 0.35332
}

Semantic roles & 50–950 ramp

primary

#63A5E7

secondary

#EAD3BC

accent

#7310D5

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #63A5E7

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

Preview Lab → · Contrast checker → · Palette generator →