#63A5EF#63A5EF

#63A5EF is a light, vivid cyan. Relative luminance 0.358; OKLCH L 70.9% C 0.128 H 252.5°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#63A5EF
RGB	rgb(99, 165, 239)
HSL	hsl(212, 81%, 66%)
HSV	hsv(212, 59%, 94%)
CMYK	cmyk(58.6%, 31%, 0%, 6.3%)
CIE-LAB	lab(66.36, 0.54, -43.41)
CIE-LCH	lch(66.36, 43.41, 270.71°)
OKLab	oklab(70.94% -0.0386 -0.1225)
OKLCH	oklch(70.94% 0.128 252.5)
XYZ	xyz(34.1751, 35.7919, 86.7522)
Luminance	0.3579 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A5EF #EFAD63

analogous

#63EBEF #63A5EF #6763EF

triadic

#63A5EF #EF63A5 #A5EF63

tetradic

#63A5EF #EF63EB #EFAD63 #63EF67

square

#63A5EF #EF63EB #EFAD63 #63EF67

split-complementary

#63A5EF #EF6763 #EBEF63

monochromatic

#1467C4 #2B85E9 #63A5EF #9BC5F5 #D2E5FA

Accessibility & contrast

On white

2.57

#63A5EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#63A5EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A5EF

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A5EF	#FFFFFF	#000000	##000000
##63A5EF	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A9F2

Deuteranopia (green-blind)

#739BEE

Tritanopia (blue-blind)

#00B6BF

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63a5ef;
/* rgb */ color: rgb(99, 165, 239);
/* oklch */ color: oklch(70.9% 0.128 252.5);

Tailwind

colors: {
  custom: {
    50: '#9abff4',
    500: '#63a5ef',
    950: '#000000',
  },
}

SCSS

$custom: #63a5ef;
$custom-light: #9abff4;
$custom-dark: #000000;

JSON

{
  "hex": "#63a5ef",
  "rgb": {
    "r": 99,
    "g": 165,
    "b": 239
  },
  "hsl": {
    "h": 211.714,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.7094,
    "c": 0.1284,
    "h": 252.5
  },
  "luminance": 0.35795
}

Semantic roles & 50–950 ramp

primary

#63A5EF

secondary

#EED8C0

accent

#7908DE

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A5EF

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

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