#51619B#51619B

#51619B is a mid, moderate blue. Relative luminance 0.127; OKLCH L 50.6% C 0.095 H 271.0°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#51619B
RGB	rgb(81, 97, 155)
HSL	hsl(227, 31%, 46%)
HSV	hsv(227, 48%, 61%)
CMYK	cmyk(47.7%, 37.4%, 0%, 39.2%)
CIE-LAB	lab(42.25, 10.32, -33.54)
CIE-LCH	lch(42.25, 35.09, 287.09°)
OKLab	oklab(50.59% 0.0017 -0.0945)
OKLCH	oklch(50.59% 0.095 271)
XYZ	xyz(13.5826, 12.6645, 32.7328)
Luminance	0.1267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51619B #9B8B51

analogous

#51869B #51619B #66519B

triadic

#51619B #9B5161 #619B51

tetradic

#51619B #9B5186 #9B8B51 #519B66

square

#51619B #9B5186 #9B8B51 #519B66

split-complementary

#51619B #9B6651 #869B51

monochromatic

#272F4B #3C4873 #51619B #7382B6 #9BA6CB

Accessibility & contrast

On white

5.94

#51619B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#51619B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51619B

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51619B	#FFFFFF	#000000	##FFFFFF
##51619B	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B679D

Deuteranopia (green-blind)

#44619A

Tritanopia (blue-blind)

#356D76

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #51619b;
/* rgb */ color: rgb(81, 97, 155);
/* oklch */ color: oklch(50.6% 0.095 271.0);

Tailwind

colors: {
  custom: {
    50: '#868db9',
    500: '#51619b',
    950: '#000000',
  },
}

SCSS

$custom: #51619b;
$custom-light: #868db9;
$custom-dark: #000000;

JSON

{
  "hex": "#51619b",
  "rgb": {
    "r": 81,
    "g": 97,
    "b": 155
  },
  "hsl": {
    "h": 227.027,
    "s": 31.356,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50588,
    "c": 0.09453,
    "h": 271
  },
  "luminance": 0.12665
}

Semantic roles & 50–950 ramp

primary

#51619B

secondary

#B8AF90

accent

#B160C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0C11

muted

#7C7D80

Preview Lab

Preview with #51619B

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

Preview Lab → · Contrast checker → · Palette generator →