#5B77DB#5B77DB

#5B77DB is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.7% C 0.155 H 269.5°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#5B77DB
RGB	rgb(91, 119, 219)
HSL	hsl(227, 64%, 61%)
HSV	hsv(227, 58%, 86%)
CMYK	cmyk(58.4%, 45.7%, 0%, 14.1%)
CIE-LAB	lab(52.43, 19.71, -54.40)
CIE-LCH	lch(52.43, 57.86, 289.92°)
OKLab	oklab(59.71% -0.0014 -0.1552)
OKLCH	oklch(59.71% 0.155 269.5)
XYZ	xyz(23.6931, 20.5304, 69.7183)
Luminance	0.2053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B77DB #DBBF5B

analogous

#5BB7DB #5B77DB #7F5BDB

triadic

#5B77DB #DB5B77 #77DB5B

tetradic

#5B77DB #DB5BB7 #DBBF5B #5BDB7F

square

#5B77DB #DB5BB7 #DBBF5B #5BDB7F

split-complementary

#5B77DB #DB7F5B #B7DB5B

monochromatic

#223C9A #2D50CC #5B77DB #8DA1E6 #BFCAF1

Accessibility & contrast

On white

4.11

#5B77DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#5B77DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B77DB

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B77DB	#FFFFFF	#000000	##000000
##5B77DB	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4883DF

Deuteranopia (green-blind)

#3578D9

Tritanopia (blue-blind)

#008D9E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5b77db;
/* rgb */ color: rgb(91, 119, 219);
/* oklch */ color: oklch(59.7% 0.155 269.5);

Tailwind

colors: {
  custom: {
    50: '#939de7',
    500: '#5b77db',
    950: '#000000',
  },
}

SCSS

$custom: #5b77db;
$custom-light: #939de7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b77db",
  "rgb": {
    "r": 91,
    "g": 119,
    "b": 219
  },
  "hsl": {
    "h": 226.875,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.5971,
    "c": 0.15519,
    "h": 269.5
  },
  "luminance": 0.20532
}

Semantic roles & 50–950 ramp

primary

#5B77DB

secondary

#E1D7B1

accent

#A51ACC

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5B77DB

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

Preview Lab → · Contrast checker → · Palette generator →