#5B71DB#5B71DB

#5B71DB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.5% C 0.163 H 271.7°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#5B71DB
RGB	rgb(91, 113, 219)
HSL	hsl(230, 64%, 61%)
HSV	hsv(230, 58%, 86%)
CMYK	cmyk(58.4%, 48.4%, 0%, 14.1%)
CIE-LAB	lab(50.86, 23.40, -56.92)
CIE-LCH	lch(50.86, 61.54, 292.35°)
OKLab	oklab(58.51% 0.0048 -0.1627)
OKLCH	oklch(58.51% 0.163 271.7)
XYZ	xyz(23.0015, 19.1471, 69.4877)
Luminance	0.1915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B71DB #DBC55B

analogous

#5BB1DB #5B71DB #855BDB

triadic

#5B71DB #DB5B71 #71DB5B

tetradic

#5B71DB #DB5BB1 #DBC55B #5BDB85

square

#5B71DB #DB5BB1 #DBC55B #5BDB85

split-complementary

#5B71DB #DB855B #B1DB5B

monochromatic

#22369A #2D48CC #5B71DB #8D9CE6 #BFC8F1

Accessibility & contrast

On white

4.35

#5B71DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#5B71DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B71DB

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B71DB	#FFFFFF	#000000	##000000
##5B71DB	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7FDF

Deuteranopia (green-blind)

#2674D9

Tritanopia (blue-blind)

#00899B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5b71db;
/* rgb */ color: rgb(91, 113, 219);
/* oklch */ color: oklch(58.5% 0.163 271.7);

Tailwind

colors: {
  custom: {
    50: '#9499e7',
    500: '#5b71db',
    950: '#000000',
  },
}

SCSS

$custom: #5b71db;
$custom-light: #9499e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b71db",
  "rgb": {
    "r": 91,
    "g": 113,
    "b": 219
  },
  "hsl": {
    "h": 229.688,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.58513,
    "c": 0.16273,
    "h": 271.7
  },
  "luminance": 0.19149
}

Semantic roles & 50–950 ramp

primary

#5B71DB

secondary

#E1D9B1

accent

#AD1ACC

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5B71DB

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

Preview Lab → · Contrast checker → · Palette generator →