#5B81F1#5B81F1

#5B81F1 is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.1% C 0.173 H 267.2°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#5B81F1
RGB	rgb(91, 129, 241)
HSL	hsl(225, 84%, 65%)
HSV	hsv(225, 62%, 95%)
CMYK	cmyk(62.2%, 46.5%, 0%, 5.5%)
CIE-LAB	lab(56.36, 20.94, -60.41)
CIE-LCH	lch(56.36, 63.93, 289.12°)
OKLab	oklab(63.13% -0.0083 -0.1727)
OKLCH	oklch(63.13% 0.173 267.2)
XYZ	xyz(28.0364, 24.2730, 86.4097)
Luminance	0.2428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B81F1 #F1CB5B

analogous

#5BCCF1 #5B81F1 #805BF1

triadic

#5B81F1 #F15B81 #81F15B

tetradic

#5B81F1 #F15BCC #F1CB5B #5BF180

square

#5B81F1 #F15BCC #F1CB5B #5BF180

split-complementary

#5B81F1 #F1805B #CCF15B

monochromatic

#103DC1 #2356EC #5B81F1 #93ACF6 #CCD8FB

Accessibility & contrast

On white

3.59

#5B81F1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#5B81F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B81F1

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B81F1	#FFFFFF	#000000	##000000
##5B81F1	1.00	3.59	5.86	5.86
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#498EF5

Deuteranopia (green-blind)

#2E81EF

Tritanopia (blue-blind)

#009BAD

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5b81f1;
/* rgb */ color: rgb(91, 129, 241);
/* oklch */ color: oklch(63.1% 0.173 267.2);

Tailwind

colors: {
  custom: {
    50: '#96a5f6',
    500: '#5b81f1',
    950: '#000000',
  },
}

SCSS

$custom: #5b81f1;
$custom-light: #96a5f6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b81f1",
  "rgb": {
    "r": 91,
    "g": 129,
    "b": 241
  },
  "hsl": {
    "h": 224.8,
    "s": 84.27,
    "l": 65.098
  },
  "oklch": {
    "l": 0.63127,
    "c": 0.17293,
    "h": 267.2
  },
  "luminance": 0.24276
}

Semantic roles & 50–950 ramp

primary

#5B81F1

secondary

#EDE0BA

accent

#A905E1

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #5B81F1

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

Preview Lab → · Contrast checker → · Palette generator →