#51538F#51538F

#51538F is a mid, moderate blue. Relative luminance 0.099; OKLCH L 46.9% C 0.096 H 280.6°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#51538F
RGB	rgb(81, 83, 143)
HSL	hsl(238, 28%, 44%)
HSV	hsv(238, 43%, 56%)
CMYK	cmyk(43.4%, 42%, 0%, 43.9%)
CIE-LAB	lab(37.70, 15.44, -33.52)
CIE-LCH	lch(37.70, 36.91, 294.73°)
OKLab	oklab(46.88% 0.0176 -0.0945)
OKLCH	oklch(46.88% 0.096 280.6)
XYZ	xyz(11.4431, 9.9185, 27.2928)
Luminance	0.0992 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51538F #8F8D51

analogous

#51728F #51538F #6E518F

triadic

#51538F #8F5153 #538F51

tetradic

#51538F #8F5172 #8F8D51 #518F6E

square

#51538F #8F5172 #8F8D51 #518F6E

split-complementary

#51538F #8F6E51 #728F51

monochromatic

#252641 #3B3C68 #51538F #6F71AE #9798C4

Accessibility & contrast

On white

7.04

#51538F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#51538F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51538F

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51538F	#FFFFFF	#000000	##FFFFFF
##51538F	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5B91

Deuteranopia (green-blind)

#3A578E

Tritanopia (blue-blind)

#3E5F6A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #51538f;
/* rgb */ color: rgb(81, 83, 143);
/* oklch */ color: oklch(46.9% 0.096 280.6);

Tailwind

colors: {
  custom: {
    50: '#8583b0',
    500: '#51538f',
    950: '#000000',
  },
}

SCSS

$custom: #51538f;
$custom-light: #8583b0;
$custom-dark: #000000;

JSON

{
  "hex": "#51538f",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 143
  },
  "hsl": {
    "h": 238.065,
    "s": 27.679,
    "l": 43.922
  },
  "oklch": {
    "l": 0.46881,
    "c": 0.09616,
    "h": 280.6
  },
  "luminance": 0.09919
}

Semantic roles & 50–950 ramp

primary

#51538F

secondary

#B1B08B

accent

#C164C4

background

#F8F8FA

surface

#EFEFF5

border

#CACACF

text

#0B0A10

muted

#7C7C7F

Preview Lab

Preview with #51538F

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

Preview Lab → · Contrast checker → · Palette generator →