#51517E#51517E

#51517E is a mid, moderate blue. Relative luminance 0.091; OKLCH L 45.5% C 0.073 H 283.1°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#51517E
RGB	rgb(81, 81, 126)
HSL	hsl(240, 22%, 41%)
HSV	hsv(240, 36%, 49%)
CMYK	cmyk(35.7%, 35.7%, 0%, 50.6%)
CIE-LAB	lab(36.25, 11.60, -25.40)
CIE-LCH	lch(36.25, 27.93, 294.55°)
OKLab	oklab(45.49% 0.0165 -0.0709)
OKLCH	oklch(45.49% 0.073 283.1)
XYZ	xyz(10.1006, 9.1402, 20.9667)
Luminance	0.0914 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51517E #7E7E51

analogous

#51677E #51517E #67517E

triadic

#51517E #7E5151 #517E51

tetradic

#51517E #7E5167 #7E7E51 #517E67

square

#51517E #7E5167 #7E7E51 #517E67

split-complementary

#51517E #7E6751 #677E51

monochromatic

#212133 #393959 #51517E #6C6CA0 #9191B8

Accessibility & contrast

On white

7.43

#51517E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#51517E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51517E

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51517E	#FFFFFF	#000000	##FFFFFF
##51517E	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435780

Deuteranopia (green-blind)

#41547D

Tritanopia (blue-blind)

#455961

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #51517e;
/* rgb */ color: rgb(81, 81, 126);
/* oklch */ color: oklch(45.5% 0.073 283.1);

Tailwind

colors: {
  custom: {
    50: '#8381a3',
    500: '#51517e',
    950: '#000000',
  },
}

SCSS

$custom: #51517e;
$custom-light: #8381a3;
$custom-dark: #000000;

JSON

{
  "hex": "#51517e",
  "rgb": {
    "r": 81,
    "g": 81,
    "b": 126
  },
  "hsl": {
    "h": 240,
    "s": 21.739,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45487,
    "c": 0.07284,
    "h": 283.1
  },
  "luminance": 0.09141
}

Semantic roles & 50–950 ramp

primary

#51517E

secondary

#A5A585

accent

#BE6ABE

background

#F8F7FA

surface

#EFEEF4

border

#CAC9CE

text

#0B0A0F

muted

#7C7C7F

Preview Lab

Preview with #51517E

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

Preview Lab → · Contrast checker → · Palette generator →