#5B8FEF#5B8FEF

#5B8FEF is a light, vivid blue. Relative luminance 0.281; OKLCH L 65.9% C 0.154 H 261.6°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#5B8FEF
RGB	rgb(91, 143, 239)
HSL	hsl(219, 82%, 65%)
HSV	hsv(219, 62%, 94%)
CMYK	cmyk(61.9%, 40.2%, 0%, 6.3%)
CIE-LAB	lab(59.98, 11.85, -53.52)
CIE-LCH	lch(59.98, 54.82, 282.48°)
OKLab	oklab(65.87% -0.0224 -0.1523)
OKLCH	oklch(65.87% 0.154 261.6)
XYZ	xyz(29.7114, 28.0984, 85.5024)
Luminance	0.2810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8FEF #EFBB5B

analogous

#5BD9EF #5B8FEF #715BEF

triadic

#5B8FEF #EF5B8F #8FEF5B

tetradic

#5B8FEF #EF5BD9 #EFBB5B #5BEF71

square

#5B8FEF #EF5BD9 #EFBB5B #5BEF71

split-complementary

#5B8FEF #EF715B #D9EF5B

monochromatic

#124EBD #2369EA #5B8FEF #93B5F4 #CBDBFA

Accessibility & contrast

On white

3.17

#5B8FEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#5B8FEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8FEF

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8FEF	#FFFFFF	#000000	##000000
##5B8FEF	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6498F3

Deuteranopia (green-blind)

#4F8AED

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b8fef;
/* rgb */ color: rgb(91, 143, 239);
/* oklch */ color: oklch(65.9% 0.154 261.6);

Tailwind

colors: {
  custom: {
    50: '#96aff5',
    500: '#5b8fef',
    950: '#000000',
  },
}

SCSS

$custom: #5b8fef;
$custom-light: #96aff5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8fef",
  "rgb": {
    "r": 91,
    "g": 143,
    "b": 239
  },
  "hsl": {
    "h": 218.919,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.65871,
    "c": 0.15396,
    "h": 261.6
  },
  "luminance": 0.28101
}

Semantic roles & 50–950 ramp

primary

#5B8FEF

secondary

#ECDABA

accent

#9307DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B8FEF

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

Preview Lab → · Contrast checker → · Palette generator →