#5B77CB#5B77CB

#5B77CB is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.7% C 0.133 H 268.2°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#5B77CB
RGB	rgb(91, 119, 203)
HSL	hsl(225, 52%, 58%)
HSV	hsv(225, 55%, 80%)
CMYK	cmyk(55.2%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(51.53, 14.46, -46.77)
CIE-LCH	lch(51.53, 48.95, 287.18°)
OKLab	oklab(58.73% -0.0041 -0.1328)
OKLCH	oklch(58.73% 0.133 268.2)
XYZ	xyz(21.6871, 19.7280, 59.1534)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B77CB #CBAF5B

analogous

#5BAFCB #5B77CB #775BCB

triadic

#5B77CB #CB5B77 #77CB5B

tetradic

#5B77CB #CB5BAF #CBAF5B #5BCB77

square

#5B77CB #CB5BAF #CBAF5B #5BCB77

split-complementary

#5B77CB #CB775B #AFCB5B

monochromatic

#294082 #3856B1 #5B77CB #899EDA #B8C4E8

Accessibility & contrast

On white

4.25

#5B77CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#5B77CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B77CB

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B77CB	#FFFFFF	#000000	##000000
##5B77CB	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CE

Deuteranopia (green-blind)

#4676C9

Tritanopia (blue-blind)

#1A8997

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5b77cb;
/* rgb */ color: rgb(91, 119, 203);
/* oklch */ color: oklch(58.7% 0.133 268.2);

Tailwind

colors: {
  custom: {
    50: '#919ddb',
    500: '#5b77cb',
    950: '#000000',
  },
}

SCSS

$custom: #5b77cb;
$custom-light: #919ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#5b77cb",
  "rgb": {
    "r": 91,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 225,
    "s": 51.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.58725,
    "c": 0.13285,
    "h": 268.2
  },
  "luminance": 0.1973
}

Semantic roles & 50–950 ramp

primary

#5B77CB

secondary

#D7CCAA

accent

#B84CDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5B77CB

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

Preview Lab → · Contrast checker → · Palette generator →