#51538D#51538D

#51538D is a mid, moderate blue. Relative luminance 0.099; OKLCH L 46.8% C 0.093 H 280.7°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#51538D
RGB	rgb(81, 83, 141)
HSL	hsl(238, 27%, 44%)
HSV	hsv(238, 43%, 55%)
CMYK	cmyk(42.6%, 41.1%, 0%, 44.7%)
CIE-LAB	lab(37.59, 14.83, -32.48)
CIE-LCH	lch(37.59, 35.71, 294.53°)
OKLab	oklab(46.76% 0.0172 -0.0915)
OKLCH	oklch(46.76% 0.093 280.7)
XYZ	xyz(11.2929, 9.8585, 26.5020)
Luminance	0.0986 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51538D #8D8B51

analogous

#51718D #51538D #6D518D

triadic

#51538D #8D5153 #538D51

tetradic

#51538D #8D5171 #8D8B51 #518D6D

square

#51538D #8D5171 #8D8B51 #518D6D

split-complementary

#51538D #8D6D51 #718D51

monochromatic

#24253F #3B3C66 #51538D #6F71AC #9697C3

Accessibility & contrast

On white

7.07

#51538D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#51538D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51538D

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51538D	#FFFFFF	#000000	##FFFFFF
##51538D	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B8F

Deuteranopia (green-blind)

#3B568C

Tritanopia (blue-blind)

#3F5F69

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #51538d;
/* rgb */ color: rgb(81, 83, 141);
/* oklch */ color: oklch(46.8% 0.093 280.7);

Tailwind

colors: {
  custom: {
    50: '#8583ae',
    500: '#51538d',
    950: '#000000',
  },
}

SCSS

$custom: #51538d;
$custom-light: #8583ae;
$custom-dark: #000000;

JSON

{
  "hex": "#51538d",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 141
  },
  "hsl": {
    "h": 238,
    "s": 27.027,
    "l": 43.529
  },
  "oklch": {
    "l": 0.46763,
    "c": 0.0931,
    "h": 280.7
  },
  "luminance": 0.09859
}

Semantic roles & 50–950 ramp

primary

#51538D

secondary

#AFAE8A

accent

#C064C3

background

#F8F8FA

surface

#EFEFF4

border

#CACACE

text

#0B0A10

muted

#7C7C7F

Preview Lab

Preview with #51538D

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

Preview Lab → · Contrast checker → · Palette generator →