#5B91F7#5B91F7

#5B91F7 is a light, vivid blue. Relative luminance 0.292; OKLCH L 66.8% C 0.162 H 261.9°. Best body text is #000000 at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#5B91F7
RGB	rgb(91, 145, 247)
HSL	hsl(219, 91%, 66%)
HSV	hsv(219, 63%, 97%)
CMYK	cmyk(63.2%, 41.3%, 0%, 3.1%)
CIE-LAB	lab(60.95, 13.33, -56.39)
CIE-LCH	lch(60.95, 57.94, 283.30°)
OKLab	oklab(66.76% -0.0228 -0.1607)
OKLCH	oklch(66.76% 0.162 261.9)
XYZ	xyz(31.2224, 29.1874, 91.9660)
Luminance	0.2919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91F7 #F7C15B

analogous

#5BDFF7 #5B91F7 #735BF7

triadic

#5B91F7 #F75B91 #91F75B

tetradic

#5B91F7 #F75BDF #F7C15B #5BF773

square

#5B91F7 #F75BDF #F7C15B #5BF773

split-complementary

#5B91F7 #F7735B #DFF75B

monochromatic

#0A4ECE #216AF4 #5B91F7 #95B8FA #D0DFFD

Accessibility & contrast

On white

3.07

#5B91F7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.84

#5B91F7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91F7

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91F7	#FFFFFF	#000000	##000000
##5B91F7	1.00	3.07	6.84	6.84
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.84	21.00	1.00	1.00
##000000	6.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#629BFB

Deuteranopia (green-blind)

#4B8CF5

Tritanopia (blue-blind)

#00A8B8

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #5b91f7;
/* rgb */ color: rgb(91, 145, 247);
/* oklch */ color: oklch(66.8% 0.162 261.9);

Tailwind

colors: {
  custom: {
    50: '#97b0fa',
    500: '#5b91f7',
    950: '#000000',
  },
}

SCSS

$custom: #5b91f7;
$custom-light: #97b0fa;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91f7",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 247
  },
  "hsl": {
    "h": 219.231,
    "s": 90.698,
    "l": 66.275
  },
  "oklch": {
    "l": 0.6676,
    "c": 0.16232,
    "h": 261.9
  },
  "luminance": 0.2919
}

Semantic roles & 50–950 ramp

primary

#5B91F7

secondary

#F0DFBD

accent

#9600E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #5B91F7

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

Preview Lab → · Contrast checker → · Palette generator →