#5B8BF1#5B8BF1

#5B8BF1 is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.2% C 0.161 H 263.6°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#5B8BF1
RGB	rgb(91, 139, 241)
HSL	hsl(221, 84%, 65%)
HSV	hsv(221, 62%, 95%)
CMYK	cmyk(62.2%, 42.3%, 0%, 5.5%)
CIE-LAB	lab(59.01, 14.90, -56.17)
CIE-LCH	lch(59.01, 58.11, 284.86°)
OKLab	oklab(65.16% -0.018 -0.1601)
OKLCH	oklch(65.16% 0.161 263.6)
XYZ	xyz(29.4187, 27.0376, 86.8705)
Luminance	0.2704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8BF1 #F1C15B

analogous

#5BD6F1 #5B8BF1 #765BF1

triadic

#5B8BF1 #F15B8B #8BF15B

tetradic

#5B8BF1 #F15BD6 #F1C15B #5BF176

square

#5B8BF1 #F15BD6 #F1C15B #5BF176

split-complementary

#5B8BF1 #F1765B #D6F15B

monochromatic

#1049C1 #2363EC #5B8BF1 #93B3F6 #CCDBFB

Accessibility & contrast

On white

3.28

#5B8BF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#5B8BF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8BF1

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8BF1	#FFFFFF	#000000	##000000
##5B8BF1	1.00	3.28	6.41	6.41
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C95F5

Deuteranopia (green-blind)

#4588EF

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #5b8bf1;
/* rgb */ color: rgb(91, 139, 241);
/* oklch */ color: oklch(65.2% 0.161 263.6);

Tailwind

colors: {
  custom: {
    50: '#96acf6',
    500: '#5b8bf1',
    950: '#000000',
  },
}

SCSS

$custom: #5b8bf1;
$custom-light: #96acf6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8bf1",
  "rgb": {
    "r": 91,
    "g": 139,
    "b": 241
  },
  "hsl": {
    "h": 220.8,
    "s": 84.27,
    "l": 65.098
  },
  "oklch": {
    "l": 0.65159,
    "c": 0.16115,
    "h": 263.6
  },
  "luminance": 0.2704
}

Semantic roles & 50–950 ramp

primary

#5B8BF1

secondary

#EDDDBA

accent

#9A05E1

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5B8BF1

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

Preview Lab → · Contrast checker → · Palette generator →