#5991F4#5991F4

#5991F4 is a light, vivid blue. Relative luminance 0.289; OKLCH L 66.5% C 0.159 H 261.0°. Best body text is #000000 at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#5991F4
RGB	rgb(89, 145, 244)
HSL	hsl(218, 88%, 65%)
HSV	hsv(218, 64%, 96%)
CMYK	cmyk(63.5%, 40.6%, 0%, 4.3%)
CIE-LAB	lab(60.70, 11.98, -55.14)
CIE-LCH	lch(60.70, 56.43, 282.26°)
OKLab	oklab(66.49% -0.025 -0.1571)
OKLCH	oklch(66.49% 0.159 261)
XYZ	xyz(30.5686, 28.9034, 89.5384)
Luminance	0.2891 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5991F4 #F4BC59

analogous

#59DEF4 #5991F4 #6F59F4

triadic

#5991F4 #F45991 #91F459

tetradic

#5991F4 #F459DE #F4BC59 #59F46F

square

#5991F4 #F459DE #F4BC59 #59F46F

split-complementary

#5991F4 #F46F59 #DEF459

monochromatic

#0D50C6 #206BF0 #5991F4 #92B7F8 #CCDDFC

Accessibility & contrast

On white

3.10

#5991F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.78

#5991F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5991F4

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5991F4	#FFFFFF	#000000	##000000
##5991F4	1.00	3.10	6.78	6.78
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.78	21.00	1.00	1.00
##000000	6.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#649AF8

Deuteranopia (green-blind)

#4D8CF2

Tritanopia (blue-blind)

#00A8B7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #5991f4;
/* rgb */ color: rgb(89, 145, 244);
/* oklch */ color: oklch(66.5% 0.159 261.0);

Tailwind

colors: {
  custom: {
    50: '#96b0f8',
    500: '#5991f4',
    950: '#000000',
  },
}

SCSS

$custom: #5991f4;
$custom-light: #96b0f8;
$custom-dark: #000000;

JSON

{
  "hex": "#5991f4",
  "rgb": {
    "r": 89,
    "g": 145,
    "b": 244
  },
  "hsl": {
    "h": 218.323,
    "s": 87.571,
    "l": 65.294
  },
  "oklch": {
    "l": 0.6649,
    "c": 0.15906,
    "h": 261
  },
  "luminance": 0.28906
}

Semantic roles & 50–950 ramp

primary

#5991F4

secondary

#EFDCBA

accent

#9201E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5991F4

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

Preview Lab → · Contrast checker → · Palette generator →