#5B81E6#5B81E6

#5B81E6 is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.4% C 0.158 H 266.4°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#5B81E6
RGB	rgb(91, 129, 230)
HSL	hsl(224, 74%, 63%)
HSV	hsv(224, 60%, 90%)
CMYK	cmyk(60.4%, 43.9%, 0%, 9.8%)
CIE-LAB	lab(55.72, 17.26, -55.31)
CIE-LCH	lch(55.72, 57.94, 287.34°)
OKLab	oklab(62.43% -0.0099 -0.1577)
OKLCH	oklch(62.43% 0.158 266.4)
XYZ	xyz(26.4427, 23.6356, 78.0162)
Luminance	0.2364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B81E6 #E6C05B

analogous

#5BC7E6 #5B81E6 #7A5BE6

triadic

#5B81E6 #E65B81 #81E65B

tetradic

#5B81E6 #E65BC7 #E6C05B #5BE67A

square

#5B81E6 #E65BC7 #E6C05B #5BE67A

split-complementary

#5B81E6 #E67A5B #C7E65B

monochromatic

#1A42AC #2658DE #5B81E6 #90AAEE #C5D3F6

Accessibility & contrast

On white

3.67

#5B81E6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#5B81E6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B81E6

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B81E6	#FFFFFF	#000000	##000000
##5B81E6	1.00	3.67	5.73	5.73
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#528CEA

Deuteranopia (green-blind)

#3D80E4

Tritanopia (blue-blind)

#0098A8

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5b81e6;
/* rgb */ color: rgb(91, 129, 230);
/* oklch */ color: oklch(62.4% 0.158 266.4);

Tailwind

colors: {
  custom: {
    50: '#95a5ee',
    500: '#5b81e6',
    950: '#000000',
  },
}

SCSS

$custom: #5b81e6;
$custom-light: #95a5ee;
$custom-dark: #000000;

JSON

{
  "hex": "#5b81e6",
  "rgb": {
    "r": 91,
    "g": 129,
    "b": 230
  },
  "hsl": {
    "h": 223.597,
    "s": 73.545,
    "l": 62.941
  },
  "oklch": {
    "l": 0.62432,
    "c": 0.15805,
    "h": 266.4
  },
  "luminance": 0.23638
}

Semantic roles & 50–950 ramp

primary

#5B81E6

secondary

#E7DAB5

accent

#A010D6

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5B81E6

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

Preview Lab → · Contrast checker → · Palette generator →