#51579D#51579D

#51579D is a mid, moderate blue. Relative luminance 0.110; OKLCH L 48.6% C 0.111 H 277.7°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#51579D
RGB	rgb(81, 87, 157)
HSL	hsl(235, 32%, 47%)
HSV	hsv(235, 48%, 62%)
CMYK	cmyk(48.4%, 44.6%, 0%, 38.4%)
CIE-LAB	lab(39.58, 17.29, -38.97)
CIE-LCH	lch(39.58, 42.63, 293.93°)
OKLab	oklab(48.57% 0.0149 -0.1104)
OKLCH	oklch(48.57% 0.111 277.7)
XYZ	xyz(12.8855, 10.9993, 33.3359)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51579D #9D9751

analogous

#517D9D #51579D #71519D

triadic

#51579D #9D5157 #579D51

tetradic

#51579D #9D517D #9D9751 #519D71

square

#51579D #9D517D #9D9751 #519D71

split-complementary

#51579D #9D7151 #7D9D51

monochromatic

#272A4C #3C4175 #51579D #7479B7 #9CA0CC

Accessibility & contrast

On white

6.56

#51579D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#51579D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51579D

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51579D	#FFFFFF	#000000	##FFFFFF
##51579D	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B60A0

Deuteranopia (green-blind)

#355A9B

Tritanopia (blue-blind)

#356672

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #51579d;
/* rgb */ color: rgb(81, 87, 157);
/* oklch */ color: oklch(48.6% 0.111 277.7);

Tailwind

colors: {
  custom: {
    50: '#8686ba',
    500: '#51579d',
    950: '#000000',
  },
}

SCSS

$custom: #51579d;
$custom-light: #8686ba;
$custom-dark: #000000;

JSON

{
  "hex": "#51579d",
  "rgb": {
    "r": 81,
    "g": 87,
    "b": 157
  },
  "hsl": {
    "h": 235.263,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48573,
    "c": 0.11144,
    "h": 277.7
  },
  "luminance": 0.11
}

Semantic roles & 50–950 ramp

primary

#51579D

secondary

#B9B691

accent

#C060C8

background

#F8F8FB

surface

#F0EFF6

border

#CBCAD0

text

#0C0B12

muted

#7D7C81

Preview Lab

Preview with #51579D

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

Preview Lab → · Contrast checker → · Palette generator →