#5B81ED#5B81ED

#5B81ED is a light, vivid blue. Relative luminance 0.240; OKLCH L 62.9% C 0.168 H 267.0°. Best body text is #000000 at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#5B81ED
RGB	rgb(91, 129, 237)
HSL	hsl(224, 80%, 64%)
HSV	hsv(224, 62%, 93%)
CMYK	cmyk(61.6%, 45.6%, 0%, 7.1%)
CIE-LAB	lab(56.12, 19.60, -58.56)
CIE-LCH	lch(56.12, 61.76, 288.50°)
OKLab	oklab(62.87% -0.0089 -0.1673)
OKLCH	oklch(62.87% 0.168 267)
XYZ	xyz(27.4455, 24.0367, 83.2976)
Luminance	0.2404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B81ED #EDC75B

analogous

#5BCAED #5B81ED #7E5BED

triadic

#5B81ED #ED5B81 #81ED5B

tetradic

#5B81ED #ED5BCA #EDC75B #5BED7E

square

#5B81ED #ED5BCA #EDC75B #5BED7E

split-complementary

#5B81ED #ED7E5B #CAED5B

monochromatic

#143FB9 #2457E7 #5B81ED #92ABF3 #C9D6F9

Accessibility & contrast

On white

3.62

#5B81ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.81

#5B81ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B81ED

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B81ED	#FFFFFF	#000000	##000000
##5B81ED	1.00	3.62	5.81	5.81
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.81	21.00	1.00	1.00
##000000	5.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8EF1

Deuteranopia (green-blind)

#3480EB

Tritanopia (blue-blind)

#009AAB

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5b81ed;
/* rgb */ color: rgb(91, 129, 237);
/* oklch */ color: oklch(62.9% 0.168 267.0);

Tailwind

colors: {
  custom: {
    50: '#96a5f3',
    500: '#5b81ed',
    950: '#000000',
  },
}

SCSS

$custom: #5b81ed;
$custom-light: #96a5f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5b81ed",
  "rgb": {
    "r": 91,
    "g": 129,
    "b": 237
  },
  "hsl": {
    "h": 224.384,
    "s": 80.22,
    "l": 64.314
  },
  "oklch": {
    "l": 0.62871,
    "c": 0.16754,
    "h": 267
  },
  "luminance": 0.24039
}

Semantic roles & 50–950 ramp

primary

#5B81ED

secondary

#EBDEB9

accent

#A509DD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5B81ED

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

Preview Lab → · Contrast checker → · Palette generator →