#51659D#51659D

#51659D is a mid, moderate blue. Relative luminance 0.135; OKLCH L 51.6% C 0.092 H 268.2°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#51659D
RGB	rgb(81, 101, 157)
HSL	hsl(224, 32%, 47%)
HSV	hsv(224, 48%, 62%)
CMYK	cmyk(48.4%, 35.7%, 0%, 38.4%)
CIE-LAB	lab(43.49, 8.45, -32.78)
CIE-LCH	lch(43.49, 33.85, 284.45°)
OKLab	oklab(51.58% -0.003 -0.0923)
OKLCH	oklch(51.58% 0.092 268.2)
XYZ	xyz(14.1309, 13.4901, 33.7510)
Luminance	0.1349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51659D #9D8951

analogous

#518B9D #51659D #63519D

triadic

#51659D #9D5165 #659D51

tetradic

#51659D #9D518B #9D8951 #519D63

square

#51659D #9D518B #9D8951 #519D63

split-complementary

#51659D #9D6351 #8B9D51

monochromatic

#27314C #3C4B75 #51659D #7486B7 #9CA9CC

Accessibility & contrast

On white

5.68

#51659D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#51659D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51659D

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51659D	#FFFFFF	#000000	##FFFFFF
##51659D	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506A9F

Deuteranopia (green-blind)

#48649C

Tritanopia (blue-blind)

#337179

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #51659d;
/* rgb */ color: rgb(81, 101, 157);
/* oklch */ color: oklch(51.6% 0.092 268.2);

Tailwind

colors: {
  custom: {
    50: '#8690ba',
    500: '#51659d',
    950: '#000000',
  },
}

SCSS

$custom: #51659d;
$custom-light: #8690ba;
$custom-dark: #000000;

JSON

{
  "hex": "#51659d",
  "rgb": {
    "r": 81,
    "g": 101,
    "b": 157
  },
  "hsl": {
    "h": 224.211,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.51579,
    "c": 0.09233,
    "h": 268.2
  },
  "luminance": 0.13491
}

Semantic roles & 50–950 ramp

primary

#51659D

secondary

#B9AE91

accent

#AD60C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0C11

muted

#7C7D80

Preview Lab

Preview with #51659D

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

Preview Lab → · Contrast checker → · Palette generator →