#51619D#51619D

#51619D is a mid, moderate blue. Relative luminance 0.127; OKLCH L 50.7% C 0.098 H 271.3°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#51619D
RGB	rgb(81, 97, 157)
HSL	hsl(227, 32%, 47%)
HSV	hsv(227, 48%, 62%)
CMYK	cmyk(48.4%, 38.2%, 0%, 38.4%)
CIE-LAB	lab(42.36, 10.95, -34.57)
CIE-LCH	lch(42.36, 36.26, 287.58°)
OKLab	oklab(50.7% 0.0022 -0.0975)
OKLCH	oklch(50.7% 0.098 271.3)
XYZ	xyz(13.7519, 12.7322, 33.6247)
Luminance	0.1273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51619D #9D8D51

analogous

#51879D #51619D #67519D

triadic

#51619D #9D5161 #619D51

tetradic

#51619D #9D5187 #9D8D51 #519D67

square

#51619D #9D5187 #9D8D51 #519D67

split-complementary

#51619D #9D6751 #879D51

monochromatic

#272F4C #3C4875 #51619D #7482B7 #9CA6CC

Accessibility & contrast

On white

5.92

#51619D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#51619D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51619D

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51619D	#FFFFFF	#000000	##FFFFFF
##51619D	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A679F

Deuteranopia (green-blind)

#43619C

Tritanopia (blue-blind)

#346E77

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #51619d;
/* rgb */ color: rgb(81, 97, 157);
/* oklch */ color: oklch(50.7% 0.098 271.3);

Tailwind

colors: {
  custom: {
    50: '#868dba',
    500: '#51619d',
    950: '#000000',
  },
}

SCSS

$custom: #51619d;
$custom-light: #868dba;
$custom-dark: #000000;

JSON

{
  "hex": "#51619d",
  "rgb": {
    "r": 81,
    "g": 97,
    "b": 157
  },
  "hsl": {
    "h": 227.368,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.50701,
    "c": 0.09753,
    "h": 271.3
  },
  "luminance": 0.12733
}

Semantic roles & 50–950 ramp

primary

#51619D

secondary

#B9B191

accent

#B260C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0C11

muted

#7C7D80

Preview Lab

Preview with #51619D

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

Preview Lab → · Contrast checker → · Palette generator →