#81A4FB#81A4FB

#81A4FB is a light, vivid blue. Relative luminance 0.382; OKLCH L 72.9% C 0.133 H 266.5°. Best body text is #000000 at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#81A4FB
RGB	rgb(129, 164, 251)
HSL	hsl(223, 94%, 75%)
HSV	hsv(223, 49%, 98%)
CMYK	cmyk(48.6%, 34.7%, 0%, 1.6%)
CIE-LAB	lab(68.15, 11.14, -47.03)
CIE-LCH	lch(68.15, 48.34, 283.32°)
OKLab	oklab(72.92% -0.0081 -0.1325)
OKLCH	oklch(72.92% 0.133 266.5)
XYZ	xyz(39.7356, 38.1805, 96.5238)
Luminance	0.3818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81A4FB #FBD881

analogous

#81E1FB #81A4FB #9B81FB

triadic

#81A4FB #FB81A4 #A4FB81

tetradic

#81A4FB #FB81E1 #FBD881 #81FB9B

square

#81A4FB #FB81E1 #FBD881 #81FB9B

split-complementary

#81A4FB #FB9B81 #E1FB81

monochromatic

#0A4EF7 #4679F9 #81A4FB #BCCFFD #E1EAFE

Accessibility & contrast

On white

2.43

#81A4FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.64

#81A4FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81A4FB

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81A4FB	#FFFFFF	#000000	##000000
##81A4FB	1.00	2.43	8.64	8.64
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.64	21.00	1.00	1.00
##000000	8.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83ACFF

Deuteranopia (green-blind)

#76A1F9

Tritanopia (blue-blind)

#4DB7C4

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #81a4fb;
/* rgb */ color: rgb(129, 164, 251);
/* oklch */ color: oklch(72.9% 0.133 266.5);

Tailwind

colors: {
  custom: {
    50: '#acbefd',
    500: '#81a4fb',
    950: '#000000',
  },
}

SCSS

$custom: #81a4fb;
$custom-light: #acbefd;
$custom-dark: #000000;

JSON

{
  "hex": "#81a4fb",
  "rgb": {
    "r": 129,
    "g": 164,
    "b": 251
  },
  "hsl": {
    "h": 222.787,
    "s": 93.846,
    "l": 74.51
  },
  "oklch": {
    "l": 0.72922,
    "c": 0.13277,
    "h": 266.5
  },
  "luminance": 0.38183
}

Semantic roles & 50–950 ramp

primary

#81A4FB

secondary

#F6EDD5

accent

#A400E6

background

#FBFBFF

surface

#F6F6FF

border

#D0D0D7

text

#111217

muted

#808185

Preview Lab

Preview with #81A4FB

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

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