#5F91EB#5F91EB

#5F91EB is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.3% C 0.145 H 261.3°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#5F91EB
RGB	rgb(95, 145, 235)
HSL	hsl(219, 78%, 65%)
HSV	hsv(219, 60%, 92%)
CMYK	cmyk(59.6%, 38.3%, 0%, 7.8%)
CIE-LAB	lab(60.50, 10.08, -50.47)
CIE-LCH	lch(60.50, 51.47, 281.29°)
OKLab	oklab(66.26% -0.0219 -0.1433)
OKLCH	oklch(66.26% 0.145 261.3)
XYZ	xyz(29.8349, 28.6793, 82.5446)
Luminance	0.2868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F91EB #EBB95F

analogous

#5FD7EB #5F91EB #735FEB

triadic

#5F91EB #EB5F91 #91EB5F

tetradic

#5F91EB #EB5FD7 #EBB95F #5FEB73

square

#5F91EB #EB5FD7 #EBB95F #5FEB73

split-complementary

#5F91EB #EB735F #D7EB5F

monochromatic

#1751B9 #296CE4 #5F91EB #95B6F2 #CCDCF9

Accessibility & contrast

On white

3.12

#5F91EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#5F91EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5F91EB

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F91EB	#FFFFFF	#000000	##000000
##5F91EB	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A99EF

Deuteranopia (green-blind)

#578CE9

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #5f91eb;
/* rgb */ color: rgb(95, 145, 235);
/* oklch */ color: oklch(66.3% 0.145 261.3);

Tailwind

colors: {
  custom: {
    50: '#97b0f2',
    500: '#5f91eb',
    950: '#000000',
  },
}

SCSS

$custom: #5f91eb;
$custom-light: #97b0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5f91eb",
  "rgb": {
    "r": 95,
    "g": 145,
    "b": 235
  },
  "hsl": {
    "h": 218.571,
    "s": 77.778,
    "l": 64.706
  },
  "oklch": {
    "l": 0.66256,
    "c": 0.14496,
    "h": 261.3
  },
  "luminance": 0.28682
}

Semantic roles & 50–950 ramp

primary

#5F91EB

secondary

#EBDABB

accent

#900BDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5F91EB

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

Preview Lab → · Contrast checker → · Palette generator →