#5751BC#5751BC

#5751BC is a mid, vivid blue. Relative luminance 0.115; OKLCH L 50.0% C 0.163 H 281.3°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#5751BC
RGB	rgb(87, 81, 188)
HSL	hsl(243, 44%, 53%)
HSV	hsv(243, 57%, 74%)
CMYK	cmyk(53.7%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(40.48, 32.34, -55.84)
CIE-LCH	lch(40.48, 64.53, 300.07°)
OKLab	oklab(50% 0.0318 -0.1599)
OKLCH	oklch(50% 0.163 281.3)
XYZ	xyz(15.9472, 11.5410, 48.9545)
Luminance	0.1154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5751BC #B6BC51

analogous

#5181BC #5751BC #8C51BC

triadic

#5751BC #BC5751 #51BC57

tetradic

#5751BC #BC5181 #B6BC51 #51BC8C

square

#5751BC #BC5181 #B6BC51 #51BC8C

split-complementary

#5751BC #BC8C51 #81BC51

monochromatic

#2C296A #3F3A96 #5751BC #827DCD #ACA9DE

Accessibility & contrast

On white

6.35

#5751BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#5751BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5751BC

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5751BC	#FFFFFF	#000000	##FFFFFF
##5751BC	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#2A6A7E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5751bc;
/* rgb */ color: rgb(87, 81, 188);
/* oklch */ color: oklch(50.0% 0.163 281.3);

Tailwind

colors: {
  custom: {
    50: '#8f82d1',
    500: '#5751bc',
    950: '#000000',
  },
}

SCSS

$custom: #5751bc;
$custom-light: #8f82d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5751bc",
  "rgb": {
    "r": 87,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 243.364,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.50001,
    "c": 0.16302,
    "h": 281.3
  },
  "luminance": 0.11542
}

Semantic roles & 50–950 ramp

primary

#5751BC

secondary

#C9CC9D

accent

#D454CD

background

#F9F7FC

surface

#F1EEF9

border

#CBC9D2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5751BC

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

Preview Lab → · Contrast checker → · Palette generator →