#5B90EB#5B90EB

#5B90EB is a light, vivid blue. Relative luminance 0.282; OKLCH L 65.8% C 0.148 H 260.6°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#5B90EB
RGB	rgb(91, 144, 235)
HSL	hsl(218, 78%, 64%)
HSV	hsv(218, 61%, 92%)
CMYK	cmyk(61.3%, 38.7%, 0%, 7.8%)
CIE-LAB	lab(60.04, 9.93, -51.21)
CIE-LCH	lch(60.04, 52.16, 280.97°)
OKLab	oklab(65.85% -0.0242 -0.1456)
OKLCH	oklch(65.85% 0.148 260.6)
XYZ	xyz(29.2778, 28.1662, 82.4749)
Luminance	0.2817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B90EB #EBB65B

analogous

#5BD8EB #5B90EB #6E5BEB

triadic

#5B90EB #EB5B90 #90EB5B

tetradic

#5B90EB #EB5BD8 #EBB65B #5BEB6E

square

#5B90EB #EB5BD8 #EBB65B #5BEB6E

split-complementary

#5B90EB #EB6E5B #D8EB5B

monochromatic

#1651B5 #246BE4 #5B90EB #92B5F2 #C8DAF8

Accessibility & contrast

On white

3.17

#5B90EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#5B90EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B90EB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B90EB	#FFFFFF	#000000	##000000
##5B90EB	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6898EF

Deuteranopia (green-blind)

#548BE9

Tritanopia (blue-blind)

#00A5B2

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b90eb;
/* rgb */ color: rgb(91, 144, 235);
/* oklch */ color: oklch(65.8% 0.148 260.6);

Tailwind

colors: {
  custom: {
    50: '#95b0f2',
    500: '#5b90eb',
    950: '#000000',
  },
}

SCSS

$custom: #5b90eb;
$custom-light: #95b0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b90eb",
  "rgb": {
    "r": 91,
    "g": 144,
    "b": 235
  },
  "hsl": {
    "h": 217.917,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.6585,
    "c": 0.14755,
    "h": 260.6
  },
  "luminance": 0.28169
}

Semantic roles & 50–950 ramp

primary

#5B90EB

secondary

#EAD8B8

accent

#8E0BDB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B90EB

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

Preview Lab → · Contrast checker → · Palette generator →