#5B8FEE#5B8FEE

#5B8FEE is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.8% C 0.153 H 261.5°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#5B8FEE
RGB	rgb(91, 143, 238)
HSL	hsl(219, 81%, 65%)
HSV	hsv(219, 62%, 93%)
CMYK	cmyk(61.8%, 39.9%, 0%, 6.7%)
CIE-LAB	lab(59.92, 11.52, -53.05)
CIE-LCH	lch(59.92, 54.29, 282.25°)
OKLab	oklab(65.81% -0.0226 -0.1509)
OKLCH	oklch(65.81% 0.153 261.5)
XYZ	xyz(29.5641, 28.0394, 84.7265)
Luminance	0.2804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8FEE #EEBA5B

analogous

#5BD8EE #5B8FEE #715BEE

triadic

#5B8FEE #EE5B8F #8FEE5B

tetradic

#5B8FEE #EE5BD8 #EEBA5B #5BEE71

square

#5B8FEE #EE5BD8 #EEBA5B #5BEE71

split-complementary

#5B8FEE #EE715B #D8EE5B

monochromatic

#134FBB #2469E8 #5B8FEE #92B5F4 #CADBF9

Accessibility & contrast

On white

3.18

#5B8FEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#5B8FEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8FEE

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8FEE	#FFFFFF	#000000	##000000
##5B8FEE	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6598F2

Deuteranopia (green-blind)

#508AEC

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b8fee;
/* rgb */ color: rgb(91, 143, 238);
/* oklch */ color: oklch(65.8% 0.153 261.5);

Tailwind

colors: {
  custom: {
    50: '#96aff4',
    500: '#5b8fee',
    950: '#000000',
  },
}

SCSS

$custom: #5b8fee;
$custom-light: #96aff4;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8fee",
  "rgb": {
    "r": 91,
    "g": 143,
    "b": 238
  },
  "hsl": {
    "h": 218.776,
    "s": 81.215,
    "l": 64.51
  },
  "oklch": {
    "l": 0.65813,
    "c": 0.15263,
    "h": 261.5
  },
  "luminance": 0.28042
}

Semantic roles & 50–950 ramp

primary

#5B8FEE

secondary

#ECDAB9

accent

#9208DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B8FEE

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

Preview Lab → · Contrast checker → · Palette generator →