#5B71DD#5B71DD

#5B71DD is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.6% C 0.165 H 271.7°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#5B71DD
RGB	rgb(91, 113, 221)
HSL	hsl(230, 66%, 61%)
HSV	hsv(230, 59%, 87%)
CMYK	cmyk(58.8%, 48.9%, 0%, 13.3%)
CIE-LAB	lab(50.98, 24.06, -57.85)
CIE-LCH	lch(50.98, 62.65, 292.58°)
OKLab	oklab(58.65% 0.005 -0.1654)
OKLCH	oklch(58.65% 0.165 271.7)
XYZ	xyz(23.2663, 19.2530, 70.8827)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B71DD #DDC75B

analogous

#5BB2DD #5B71DD #865BDD

triadic

#5B71DD #DD5B71 #71DD5B

tetradic

#5B71DD #DD5BB2 #DDC75B #5BDD86

square

#5B71DD #DD5BB2 #DDC75B #5BDD86

split-complementary

#5B71DD #DD865B #B2DD5B

monochromatic

#21369D #2B47D0 #5B71DD #8E9DE8 #C0C9F2

Accessibility & contrast

On white

4.33

#5B71DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#5B71DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B71DD

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B71DD	#FFFFFF	#000000	##000000
##5B71DD	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7FE1

Deuteranopia (green-blind)

#2274DB

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5b71dd;
/* rgb */ color: rgb(91, 113, 221);
/* oklch */ color: oklch(58.6% 0.165 271.7);

Tailwind

colors: {
  custom: {
    50: '#9499e8',
    500: '#5b71dd',
    950: '#000000',
  },
}

SCSS

$custom: #5b71dd;
$custom-light: #9499e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b71dd",
  "rgb": {
    "r": 91,
    "g": 113,
    "b": 221
  },
  "hsl": {
    "h": 229.846,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.58646,
    "c": 0.16548,
    "h": 271.7
  },
  "luminance": 0.19255
}

Semantic roles & 50–950 ramp

primary

#5B71DD

secondary

#E2DAB1

accent

#AF18CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5B71DD

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

Preview Lab → · Contrast checker → · Palette generator →