#5F91FB#5F91FB

#5F91FB is a light, vivid blue. Relative luminance 0.296; OKLCH L 67.2% C 0.166 H 263.5°. Best body text is #000000 at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#5F91FB
RGB	rgb(95, 145, 251)
HSL	hsl(221, 95%, 68%)
HSV	hsv(221, 62%, 98%)
CMYK	cmyk(62.2%, 42.2%, 0%, 1.6%)
CIE-LAB	lab(61.35, 15.35, -57.93)
CIE-LCH	lch(61.35, 59.93, 284.84°)
OKLab	oklab(67.19% -0.0187 -0.1652)
OKLCH	oklch(67.19% 0.166 263.5)
XYZ	xyz(32.2512, 29.6458, 95.2707)
Luminance	0.2965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F91FB #FBC95F

analogous

#5FDFFB #5F91FB #7B5FFB

triadic

#5F91FB #FB5F91 #91FB5F

tetradic

#5F91FB #FB5FDF #FBC95F #5FFB7B

square

#5F91FB #FB5FDF #FBC95F #5FFB7B

split-complementary

#5F91FB #FB7B5F #DFFB5F

monochromatic

#054ADA #2368FA #5F91FB #9BBAFC #D6E3FE

Accessibility & contrast

On white

3.03

#5F91FB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.93

#5F91FB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5F91FB

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F91FB	#FFFFFF	#000000	##000000
##5F91FB	1.00	3.03	6.93	6.93
#FFFFFF	3.03	1.00	21.00	21.00
#000000	6.93	21.00	1.00	1.00
##000000	6.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#609CFF

Deuteranopia (green-blind)

#498DF9

Tritanopia (blue-blind)

#00A9BA

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #5f91fb;
/* rgb */ color: rgb(95, 145, 251);
/* oklch */ color: oklch(67.2% 0.166 263.5);

Tailwind

colors: {
  custom: {
    50: '#99b0fd',
    500: '#5f91fb',
    950: '#000000',
  },
}

SCSS

$custom: #5f91fb;
$custom-light: #99b0fd;
$custom-dark: #000000;

JSON

{
  "hex": "#5f91fb",
  "rgb": {
    "r": 95,
    "g": 145,
    "b": 251
  },
  "hsl": {
    "h": 220.769,
    "s": 95.122,
    "l": 67.843
  },
  "oklch": {
    "l": 0.67189,
    "c": 0.16623,
    "h": 263.5
  },
  "luminance": 0.29649
}

Semantic roles & 50–950 ramp

primary

#5F91FB

secondary

#F3E4C3

accent

#9C00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #5F91FB

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

Preview Lab → · Contrast checker → · Palette generator →