#5B8CEB#5B8CEB

#5B8CEB is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.0% C 0.152 H 262.4°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#5B8CEB
RGB	rgb(91, 140, 235)
HSL	hsl(220, 78%, 64%)
HSV	hsv(220, 61%, 92%)
CMYK	cmyk(61.3%, 40.4%, 0%, 7.8%)
CIE-LAB	lab(58.95, 12.31, -52.94)
CIE-LCH	lch(58.95, 54.35, 283.09°)
OKLab	oklab(65.01% -0.0202 -0.1506)
OKLCH	oklch(65.01% 0.152 262.4)
XYZ	xyz(28.6826, 26.9759, 82.2765)
Luminance	0.2698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8CEB #EBBA5B

analogous

#5BD4EB #5B8CEB #725BEB

triadic

#5B8CEB #EB5B8C #8CEB5B

tetradic

#5B8CEB #EB5BD4 #EBBA5B #5BEB72

square

#5B8CEB #EB5BD4 #EBBA5B #5BEB72

split-complementary

#5B8CEB #EB725B #D4EB5B

monochromatic

#164CB5 #2466E4 #5B8CEB #92B2F2 #C8D9F8

Accessibility & contrast

On white

3.28

#5B8CEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#5B8CEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8CEB

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8CEB	#FFFFFF	#000000	##000000
##5B8CEB	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6295EF

Deuteranopia (green-blind)

#4D88E9

Tritanopia (blue-blind)

#00A1B0

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #5b8ceb;
/* rgb */ color: rgb(91, 140, 235);
/* oklch */ color: oklch(65.0% 0.152 262.4);

Tailwind

colors: {
  custom: {
    50: '#95adf2',
    500: '#5b8ceb',
    950: '#000000',
  },
}

SCSS

$custom: #5b8ceb;
$custom-light: #95adf2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8ceb",
  "rgb": {
    "r": 91,
    "g": 140,
    "b": 235
  },
  "hsl": {
    "h": 219.583,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.65009,
    "c": 0.15199,
    "h": 262.4
  },
  "luminance": 0.26978
}

Semantic roles & 50–950 ramp

primary

#5B8CEB

secondary

#EAD9B8

accent

#940BDB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B8CEB

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

Preview Lab → · Contrast checker → · Palette generator →