#5B77CC#5B77CC

#5B77CC is a mid, vivid blue. Relative luminance 0.198; OKLCH L 58.8% C 0.134 H 268.3°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5B77CC
RGB	rgb(91, 119, 204)
HSL	hsl(225, 53%, 58%)
HSV	hsv(225, 55%, 80%)
CMYK	cmyk(55.4%, 41.7%, 0%, 20%)
CIE-LAB	lab(51.58, 14.79, -47.25)
CIE-LCH	lch(51.58, 49.51, 287.38°)
OKLab	oklab(58.79% -0.0039 -0.1342)
OKLCH	oklch(58.79% 0.134 268.3)
XYZ	xyz(21.8067, 19.7758, 59.7830)
Luminance	0.1978 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B77CC #CCB05B

analogous

#5BAFCC #5B77CC #785BCC

triadic

#5B77CC #CC5B77 #77CC5B

tetradic

#5B77CC #CC5BAF #CCB05B #5BCC78

square

#5B77CC #CC5BAF #CCB05B #5BCC78

split-complementary

#5B77CC #CC785B #AFCC5B

monochromatic

#293F84 #3756B2 #5B77CC #8A9EDB #B8C4E9

Accessibility & contrast

On white

4.24

#5B77CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#5B77CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B77CC

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B77CC	#FFFFFF	#000000	##000000
##5B77CC	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5380CF

Deuteranopia (green-blind)

#4576CA

Tritanopia (blue-blind)

#188A97

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5b77cc;
/* rgb */ color: rgb(91, 119, 204);
/* oklch */ color: oklch(58.8% 0.134 268.3);

Tailwind

colors: {
  custom: {
    50: '#919ddc',
    500: '#5b77cc',
    950: '#000000',
  },
}

SCSS

$custom: #5b77cc;
$custom-light: #919ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b77cc",
  "rgb": {
    "r": 91,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 225.133,
    "s": 52.558,
    "l": 57.843
  },
  "oklch": {
    "l": 0.58785,
    "c": 0.13426,
    "h": 268.3
  },
  "luminance": 0.19777
}

Semantic roles & 50–950 ramp

primary

#5B77CC

secondary

#D8CDAB

accent

#B84CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5B77CC

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

Preview Lab → · Contrast checker → · Palette generator →