#5B91EA#5B91EA

#5B91EA is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.0% C 0.145 H 259.9°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#5B91EA
RGB	rgb(91, 145, 234)
HSL	hsl(217, 77%, 64%)
HSV	hsv(217, 61%, 92%)
CMYK	cmyk(61.1%, 38%, 0%, 8.2%)
CIE-LAB	lab(60.26, 9.00, -50.31)
CIE-LCH	lch(60.26, 51.11, 280.15°)
OKLab	oklab(66.01% -0.0255 -0.1429)
OKLCH	oklch(66.01% 0.145 259.9)
XYZ	xyz(29.2858, 28.4128, 81.7668)
Luminance	0.2842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91EA #EAB45B

analogous

#5BD8EA #5B91EA #6C5BEA

triadic

#5B91EA #EA5B91 #91EA5B

tetradic

#5B91EA #EA5BD8 #EAB45B #5BEA6C

square

#5B91EA #EA5BD8 #EAB45B #5BEA6C

split-complementary

#5B91EA #EA6C5B #D8EA5B

monochromatic

#1752B4 #256DE3 #5B91EA #91B5F1 #C8DAF8

Accessibility & contrast

On white

3.14

#5B91EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#5B91EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91EA

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91EA	#FFFFFF	#000000	##000000
##5B91EA	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A98EE

Deuteranopia (green-blind)

#578BE8

Tritanopia (blue-blind)

#00A5B2

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b91ea;
/* rgb */ color: rgb(91, 145, 234);
/* oklch */ color: oklch(66.0% 0.145 259.9);

Tailwind

colors: {
  custom: {
    50: '#95b0f1',
    500: '#5b91ea',
    950: '#000000',
  },
}

SCSS

$custom: #5b91ea;
$custom-light: #95b0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91ea",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 234
  },
  "hsl": {
    "h": 217.343,
    "s": 77.297,
    "l": 63.725
  },
  "oklch": {
    "l": 0.66005,
    "c": 0.14514,
    "h": 259.9
  },
  "luminance": 0.28415
}

Semantic roles & 50–950 ramp

primary

#5B91EA

secondary

#EAD7B7

accent

#8C0CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B91EA

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

Preview Lab → · Contrast checker → · Palette generator →