#5B8EEF#5B8EEF

#5B8EEF is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.7% C 0.155 H 262.1°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#5B8EEF
RGB	rgb(91, 142, 239)
HSL	hsl(219, 82%, 65%)
HSV	hsv(219, 62%, 94%)
CMYK	cmyk(61.9%, 40.6%, 0%, 6.3%)
CIE-LAB	lab(59.71, 12.44, -53.95)
CIE-LCH	lch(59.71, 55.37, 282.99°)
OKLab	oklab(65.66% -0.0214 -0.1536)
OKLCH	oklch(65.66% 0.155 262.1)
XYZ	xyz(29.5619, 27.7995, 85.4526)
Luminance	0.2780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8EEF #EFBC5B

analogous

#5BD8EF #5B8EEF #725BEF

triadic

#5B8EEF #EF5B8E #8EEF5B

tetradic

#5B8EEF #EF5BD8 #EFBC5B #5BEF72

square

#5B8EEF #EF5BD8 #EFBC5B #5BEF72

split-complementary

#5B8EEF #EF725B #D8EF5B

monochromatic

#124DBD #2368EA #5B8EEF #93B4F4 #CBDBFA

Accessibility & contrast

On white

3.20

#5B8EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#5B8EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8EEF

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8EEF	#FFFFFF	#000000	##000000
##5B8EEF	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6397F3

Deuteranopia (green-blind)

#4D89ED

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b8eef;
/* rgb */ color: rgb(91, 142, 239);
/* oklch */ color: oklch(65.7% 0.155 262.1);

Tailwind

colors: {
  custom: {
    50: '#96aef5',
    500: '#5b8eef',
    950: '#000000',
  },
}

SCSS

$custom: #5b8eef;
$custom-light: #96aef5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8eef",
  "rgb": {
    "r": 91,
    "g": 142,
    "b": 239
  },
  "hsl": {
    "h": 219.324,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.65662,
    "c": 0.15508,
    "h": 262.1
  },
  "luminance": 0.27802
}

Semantic roles & 50–950 ramp

primary

#5B8EEF

secondary

#ECDBBA

accent

#9407DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B8EEF

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

Preview Lab → · Contrast checker → · Palette generator →