#5B8FF4#5B8FF4

#5B8FF4 is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.2% C 0.161 H 262.3°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#5B8FF4
RGB	rgb(91, 143, 244)
HSL	hsl(220, 87%, 66%)
HSV	hsv(220, 63%, 96%)
CMYK	cmyk(62.7%, 41.4%, 0%, 4.3%)
CIE-LAB	lab(60.25, 13.52, -55.85)
CIE-LCH	lch(60.25, 57.46, 283.60°)
OKLab	oklab(66.17% -0.0214 -0.1592)
OKLCH	oklch(66.17% 0.161 262.3)
XYZ	xyz(30.4603, 28.3979, 89.4465)
Luminance	0.2840 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8FF4 #F4C05B

analogous

#5BDBF4 #5B8FF4 #735BF4

triadic

#5B8FF4 #F45B8F #8FF45B

tetradic

#5B8FF4 #F45BDB #F4C05B #5BF473

square

#5B8FF4 #F45BDB #F4C05B #5BF473

split-complementary

#5B8FF4 #F4735B #DBF45B

monochromatic

#0D4DC7 #2268F0 #5B8FF4 #94B6F8 #CEDDFC

Accessibility & contrast

On white

3.14

#5B8FF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#5B8FF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8FF4

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8FF4	#FFFFFF	#000000	##000000
##5B8FF4	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6199F8

Deuteranopia (green-blind)

#4A8BF2

Tritanopia (blue-blind)

#00A6B6

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b8ff4;
/* rgb */ color: rgb(91, 143, 244);
/* oklch */ color: oklch(66.2% 0.161 262.3);

Tailwind

colors: {
  custom: {
    50: '#97aff8',
    500: '#5b8ff4',
    950: '#000000',
  },
}

SCSS

$custom: #5b8ff4;
$custom-light: #97aff8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8ff4",
  "rgb": {
    "r": 91,
    "g": 143,
    "b": 244
  },
  "hsl": {
    "h": 219.608,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.66166,
    "c": 0.16059,
    "h": 262.3
  },
  "luminance": 0.28401
}

Semantic roles & 50–950 ramp

primary

#5B8FF4

secondary

#EFDEBC

accent

#9702E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5B8FF4

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

Preview Lab → · Contrast checker → · Palette generator →