#5B71C8#5B71C8

#5B71C8 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.3% C 0.136 H 270.9°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#5B71C8
RGB	rgb(91, 113, 200)
HSL	hsl(228, 50%, 57%)
HSV	hsv(228, 55%, 78%)
CMYK	cmyk(54.5%, 43.5%, 0%, 21.6%)
CIE-LAB	lab(49.74, 17.17, -47.90)
CIE-LCH	lch(49.74, 50.88, 289.72°)
OKLab	oklab(57.3% 0.0021 -0.1362)
OKLCH	oklch(57.3% 0.136 270.9)
XYZ	xyz(20.6414, 18.2031, 57.0582)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B71C8 #C8B25B

analogous

#5BA8C8 #5B71C8 #7C5BC8

triadic

#5B71C8 #C85B71 #71C85B

tetradic

#5B71C8 #C85BA8 #C8B25B #5BC87C

square

#5B71C8 #C85BA8 #C8B25B #5BC87C

split-complementary

#5B71C8 #C87C5B #A8C85B

monochromatic

#2A3B7E #3A51AC #5B71C8 #8999D7 #B7C0E7

Accessibility & contrast

On white

4.52

#5B71C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#5B71C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B71C8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B71C8	#FFFFFF	#000000	##000000
##5B71C8	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7BCB

Deuteranopia (green-blind)

#3E72C6

Tritanopia (blue-blind)

#218493

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5b71c8;
/* rgb */ color: rgb(91, 113, 200);
/* oklch */ color: oklch(57.3% 0.136 270.9);

Tailwind

colors: {
  custom: {
    50: '#9199d9',
    500: '#5b71c8',
    950: '#000000',
  },
}

SCSS

$custom: #5b71c8;
$custom-light: #9199d9;
$custom-dark: #000000;

JSON

{
  "hex": "#5b71c8",
  "rgb": {
    "r": 91,
    "g": 113,
    "b": 200
  },
  "hsl": {
    "h": 227.89,
    "s": 49.772,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57301,
    "c": 0.13618,
    "h": 270.9
  },
  "luminance": 0.18205
}

Semantic roles & 50–950 ramp

primary

#5B71C8

secondary

#D6CDA9

accent

#BD4FD9

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5B71C8

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

Preview Lab → · Contrast checker → · Palette generator →