#5B77EB#5B77EB

#5B77EB is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.8% C 0.177 H 270.2°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#5B77EB
RGB	rgb(91, 119, 235)
HSL	hsl(228, 78%, 64%)
HSV	hsv(228, 61%, 92%)
CMYK	cmyk(61.3%, 49.4%, 0%, 7.8%)
CIE-LAB	lab(53.40, 25.03, -61.83)
CIE-LCH	lch(53.40, 66.70, 292.04°)
OKLab	oklab(60.76% 0.0006 -0.177)
OKLCH	oklch(60.76% 0.177 270.2)
XYZ	xyz(25.9016, 21.4138, 81.3495)
Luminance	0.2142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B77EB #EBCF5B

analogous

#5BBFEB #5B77EB #875BEB

triadic

#5B77EB #EB5B77 #77EB5B

tetradic

#5B77EB #EB5BBF #EBCF5B #5BEB87

square

#5B77EB #EB5BBF #EBCF5B #5BEB87

split-complementary

#5B77EB #EB875B #BFEB5B

monochromatic

#1635B5 #244AE4 #5B77EB #92A4F2 #C8D1F8

Accessibility & contrast

On white

3.97

#5B77EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#5B77EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B77EB

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B77EB	#FFFFFF	#000000	##000000
##5B77EB	1.00	3.97	5.28	5.28
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3886EF

Deuteranopia (green-blind)

#1679E9

Tritanopia (blue-blind)

#0092A6

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #5b77eb;
/* rgb */ color: rgb(91, 119, 235);
/* oklch */ color: oklch(60.8% 0.177 270.2);

Tailwind

colors: {
  custom: {
    50: '#969df2',
    500: '#5b77eb',
    950: '#000000',
  },
}

SCSS

$custom: #5b77eb;
$custom-light: #969df2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b77eb",
  "rgb": {
    "r": 91,
    "g": 119,
    "b": 235
  },
  "hsl": {
    "h": 228.333,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.60757,
    "c": 0.17702,
    "h": 270.2
  },
  "luminance": 0.21416
}

Semantic roles & 50–950 ramp

primary

#5B77EB

secondary

#EAE0B8

accent

#B20BDB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E17

muted

#7E7E85

Preview Lab

Preview with #5B77EB

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

Preview Lab → · Contrast checker → · Palette generator →