#5B8CF4#5B8CF4

#5B8CF4 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.5% C 0.164 H 263.5°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#5B8CF4
RGB	rgb(91, 140, 244)
HSL	hsl(221, 87%, 66%)
HSV	hsv(221, 63%, 96%)
CMYK	cmyk(62.7%, 42.6%, 0%, 4.3%)
CIE-LAB	lab(59.44, 15.31, -57.13)
CIE-LCH	lch(59.44, 59.15, 285.00°)
OKLab	oklab(65.55% -0.0185 -0.163)
OKLCH	oklch(65.55% 0.164 263.5)
XYZ	xyz(30.0159, 27.5092, 89.2984)
Luminance	0.2751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8CF4 #F4C35B

analogous

#5BD9F4 #5B8CF4 #765BF4

triadic

#5B8CF4 #F45B8C #8CF45B

tetradic

#5B8CF4 #F45BD9 #F4C35B #5BF476

square

#5B8CF4 #F45BD9 #F4C35B #5BF476

split-complementary

#5B8CF4 #F4765B #D9F45B

monochromatic

#0D49C7 #2264F0 #5B8CF4 #94B4F8 #CEDCFC

Accessibility & contrast

On white

3.23

#5B8CF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#5B8CF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8CF4

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8CF4	#FFFFFF	#000000	##000000
##5B8CF4	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C97F8

Deuteranopia (green-blind)

#4489F2

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #5b8cf4;
/* rgb */ color: rgb(91, 140, 244);
/* oklch */ color: oklch(65.5% 0.164 263.5);

Tailwind

colors: {
  custom: {
    50: '#97adf8',
    500: '#5b8cf4',
    950: '#000000',
  },
}

SCSS

$custom: #5b8cf4;
$custom-light: #97adf8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8cf4",
  "rgb": {
    "r": 91,
    "g": 140,
    "b": 244
  },
  "hsl": {
    "h": 220.784,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.65547,
    "c": 0.164,
    "h": 263.5
  },
  "luminance": 0.27512
}

Semantic roles & 50–950 ramp

primary

#5B8CF4

secondary

#EFDFBC

accent

#9B02E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5B8CF4

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

Preview Lab → · Contrast checker → · Palette generator →