#5B88FD#5B88FD

#5B88FD is a light, vivid blue. Relative luminance 0.269; OKLCH L 65.3% C 0.181 H 265.8°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#5B88FD
RGB	rgb(91, 136, 253)
HSL	hsl(223, 98%, 67%)
HSV	hsv(223, 64%, 99%)
CMYK	cmyk(64%, 46.2%, 0%, 0.8%)
CIE-LAB	lab(58.90, 20.74, -62.96)
CIE-LCH	lch(58.90, 66.28, 288.23°)
OKLab	oklab(65.3% -0.0132 -0.1801)
OKLCH	oklch(65.3% 0.181 265.8)
XYZ	xyz(30.8420, 26.9214, 96.4805)
Luminance	0.2692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B88FD #FDD05B

analogous

#5BD9FD #5B88FD #7F5BFD

triadic

#5B88FD #FD5B88 #88FD5B

tetradic

#5B88FD #FD5BD9 #FDD05B #5BFD7F

square

#5B88FD #FD5BD9 #FDD05B #5BFD7F

split-complementary

#5B88FD #FD7F5B #D9FD5B

monochromatic

#033FDB #1F5CFC #5B88FD #97B4FE #D4E0FE

Accessibility & contrast

On white

3.29

#5B88FD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#5B88FD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B88FD

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B88FD	#FFFFFF	#000000	##000000
##5B88FD	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D96FF

Deuteranopia (green-blind)

#2D87FB

Tritanopia (blue-blind)

#00A3B6

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #5b88fd;
/* rgb */ color: rgb(91, 136, 253);
/* oklch */ color: oklch(65.3% 0.181 265.8);

Tailwind

colors: {
  custom: {
    50: '#98aaff',
    500: '#5b88fd',
    950: '#000000',
  },
}

SCSS

$custom: #5b88fd;
$custom-light: #98aaff;
$custom-dark: #000000;

JSON

{
  "hex": "#5b88fd",
  "rgb": {
    "r": 91,
    "g": 136,
    "b": 253
  },
  "hsl": {
    "h": 223.333,
    "s": 97.59,
    "l": 67.451
  },
  "oklch": {
    "l": 0.65298,
    "c": 0.18062,
    "h": 265.8
  },
  "luminance": 0.26924
}

Semantic roles & 50–950 ramp

primary

#5B88FD

secondary

#F3E5C1

accent

#A600E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #5B88FD

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

Preview Lab → · Contrast checker → · Palette generator →