#51539A#51539A

#51539A is a mid, moderate blue. Relative luminance 0.103; OKLCH L 47.6% C 0.113 H 280.0°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#51539A
RGB	rgb(81, 83, 154)
HSL	hsl(238, 31%, 46%)
HSV	hsv(238, 47%, 60%)
CMYK	cmyk(47.4%, 46.1%, 0%, 39.6%)
CIE-LAB	lab(38.32, 18.89, -39.18)
CIE-LCH	lch(38.32, 43.49, 295.74°)
OKLab	oklab(47.56% 0.0195 -0.1111)
OKLCH	oklch(47.56% 0.113 280)
XYZ	xyz(12.3176, 10.2683, 31.8985)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51539A #9A9851

analogous

#51779A #51539A #73519A

triadic

#51539A #9A5153 #539A51

tetradic

#51539A #9A5177 #9A9851 #519A73

square

#51539A #9A5177 #9A9851 #519A73

split-complementary

#51539A #9A7351 #779A51

monochromatic

#27284A #3C3D72 #51539A #7375B5 #9B9CCA

Accessibility & contrast

On white

6.88

#51539A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#51539A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51539A

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51539A	#FFFFFF	#000000	##FFFFFF
##51539A	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365D9D

Deuteranopia (green-blind)

#315898

Tritanopia (blue-blind)

#38626F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #51539a;
/* rgb */ color: rgb(81, 83, 154);
/* oklch */ color: oklch(47.6% 0.113 280.0);

Tailwind

colors: {
  custom: {
    50: '#8683b8',
    500: '#51539a',
    950: '#000000',
  },
}

SCSS

$custom: #51539a;
$custom-light: #8683b8;
$custom-dark: #000000;

JSON

{
  "hex": "#51539a",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 154
  },
  "hsl": {
    "h": 238.356,
    "s": 31.064,
    "l": 46.078
  },
  "oklch": {
    "l": 0.47559,
    "c": 0.11278,
    "h": 280
  },
  "luminance": 0.10269
}

Semantic roles & 50–950 ramp

primary

#51539A

secondary

#B7B68F

accent

#C461C7

background

#F8F8FB

surface

#F0EFF6

border

#CBCAD0

text

#0B0A11

muted

#7C7C80

Preview Lab

Preview with #51539A

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

Preview Lab → · Contrast checker → · Palette generator →