#5B90E4#5B90E4

#5B90E4 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.5% C 0.138 H 259.3°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#5B90E4
RGB	rgb(91, 144, 228)
HSL	hsl(217, 72%, 63%)
HSV	hsv(217, 60%, 89%)
CMYK	cmyk(60.1%, 36.8%, 0%, 10.6%)
CIE-LAB	lab(59.68, 7.62, -47.90)
CIE-LCH	lch(59.68, 48.50, 279.03°)
OKLab	oklab(65.46% -0.0258 -0.1358)
OKLCH	oklch(65.46% 0.138 259.3)
XYZ	xyz(28.2863, 27.7696, 77.2532)
Luminance	0.2777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B90E4 #E4AF5B

analogous

#5BD5E4 #5B90E4 #6A5BE4

triadic

#5B90E4 #E45B90 #90E45B

tetradic

#5B90E4 #E45BD5 #E4AF5B #5BE46A

square

#5B90E4 #E45BD5 #E4AF5B #5BE46A

split-complementary

#5B90E4 #E46A5B #D5E45B

monochromatic

#1C52A9 #266CDB #5B90E4 #90B4ED #C4D7F5

Accessibility & contrast

On white

3.20

#5B90E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#5B90E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B90E4

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B90E4	#FFFFFF	#000000	##000000
##5B90E4	1.00	3.20	6.55	6.55
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C97E7

Deuteranopia (green-blind)

#5A8AE2

Tritanopia (blue-blind)

#00A3AF

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b90e4;
/* rgb */ color: rgb(91, 144, 228);
/* oklch */ color: oklch(65.5% 0.138 259.3);

Tailwind

colors: {
  custom: {
    50: '#94b0ed',
    500: '#5b90e4',
    950: '#000000',
  },
}

SCSS

$custom: #5b90e4;
$custom-light: #94b0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5b90e4",
  "rgb": {
    "r": 91,
    "g": 144,
    "b": 228
  },
  "hsl": {
    "h": 216.788,
    "s": 71.728,
    "l": 62.549
  },
  "oklch": {
    "l": 0.65455,
    "c": 0.13828,
    "h": 259.3
  },
  "luminance": 0.27772
}

Semantic roles & 50–950 ramp

primary

#5B90E4

secondary

#E6D3B4

accent

#8912D4

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5B90E4

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

Preview Lab → · Contrast checker → · Palette generator →