#5B91ED#5B91ED

#5B91ED is a light, vivid blue. Relative luminance 0.286; OKLCH L 66.2% C 0.149 H 260.4°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#5B91ED
RGB	rgb(91, 145, 237)
HSL	hsl(218, 80%, 64%)
HSV	hsv(218, 62%, 93%)
CMYK	cmyk(61.6%, 38.8%, 0%, 7.1%)
CIE-LAB	lab(60.42, 10.00, -51.72)
CIE-LCH	lch(60.42, 52.68, 280.94°)
OKLab	oklab(66.18% -0.0248 -0.147)
OKLCH	oklch(66.18% 0.149 260.4)
XYZ	xyz(29.7205, 28.5867, 84.0559)
Luminance	0.2859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91ED #EDB75B

analogous

#5BDAED #5B91ED #6E5BED

triadic

#5B91ED #ED5B91 #91ED5B

tetradic

#5B91ED #ED5BDA #EDB75B #5BED6E

square

#5B91ED #ED5BDA #EDB75B #5BED6E

split-complementary

#5B91ED #ED6E5B #DAED5B

monochromatic

#1451B9 #246CE7 #5B91ED #92B6F3 #C9DBF9

Accessibility & contrast

On white

3.13

#5B91ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#5B91ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91ED

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91ED	#FFFFFF	#000000	##000000
##5B91ED	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6999F1

Deuteranopia (green-blind)

#548BEB

Tritanopia (blue-blind)

#00A6B4

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #5b91ed;
/* rgb */ color: rgb(91, 145, 237);
/* oklch */ color: oklch(66.2% 0.149 260.4);

Tailwind

colors: {
  custom: {
    50: '#95b0f3',
    500: '#5b91ed',
    950: '#000000',
  },
}

SCSS

$custom: #5b91ed;
$custom-light: #95b0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91ed",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 237
  },
  "hsl": {
    "h": 217.808,
    "s": 80.22,
    "l": 64.314
  },
  "oklch": {
    "l": 0.66176,
    "c": 0.1491,
    "h": 260.4
  },
  "luminance": 0.28589
}

Semantic roles & 50–950 ramp

primary

#5B91ED

secondary

#EBD8B9

accent

#8E09DD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B91ED

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

Preview Lab → · Contrast checker → · Palette generator →