#51669C#51669C

#51669C is a mid, moderate blue. Relative luminance 0.137; OKLCH L 51.7% C 0.090 H 267.1°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#51669C
RGB	rgb(81, 102, 156)
HSL	hsl(223, 32%, 46%)
HSV	hsv(223, 48%, 61%)
CMYK	cmyk(48.1%, 34.6%, 0%, 38.8%)
CIE-LAB	lab(43.73, 7.51, -31.82)
CIE-LCH	lch(43.73, 32.69, 283.27°)
OKLab	oklab(51.75% -0.0045 -0.0895)
OKLCH	oklch(51.75% 0.09 267.1)
XYZ	xyz(14.1435, 13.6515, 33.3358)
Luminance	0.1365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51669C #9C8751

analogous

#518C9C #51669C #62519C

triadic

#51669C #9C5166 #669C51

tetradic

#51669C #9C518C #9C8751 #519C62

square

#51669C #9C518C #9C8751 #519C62

split-complementary

#51669C #9C6251 #8C9C51

monochromatic

#27314B #3C4C74 #51669C #7486B7 #9CA9CC

Accessibility & contrast

On white

5.63

#51669C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#51669C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51669C

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51669C	#FFFFFF	#000000	##FFFFFF
##51669C	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526B9E

Deuteranopia (green-blind)

#4A649B

Tritanopia (blue-blind)

#33717A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #51669c;
/* rgb */ color: rgb(81, 102, 156);
/* oklch */ color: oklch(51.7% 0.090 267.1);

Tailwind

colors: {
  custom: {
    50: '#8691b9',
    500: '#51669c',
    950: '#000000',
  },
}

SCSS

$custom: #51669c;
$custom-light: #8691b9;
$custom-dark: #000000;

JSON

{
  "hex": "#51669c",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 156
  },
  "hsl": {
    "h": 223.2,
    "s": 31.646,
    "l": 46.471
  },
  "oklch": {
    "l": 0.51745,
    "c": 0.08959,
    "h": 267.1
  },
  "luminance": 0.13652
}

Semantic roles & 50–950 ramp

primary

#51669C

secondary

#B8AD90

accent

#AB60C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0C11

muted

#7C7D80

Preview Lab

Preview with #51669C

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

Preview Lab → · Contrast checker → · Palette generator →