#51678D#51678D

#51678D is a mid, moderate blue. Relative luminance 0.134; OKLCH L 51.2% C 0.066 H 261.1°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#51678D
RGB	rgb(81, 103, 141)
HSL	hsl(218, 27%, 44%)
HSV	hsv(218, 43%, 55%)
CMYK	cmyk(42.6%, 27%, 0%, 44.7%)
CIE-LAB	lab(43.32, 2.26, -23.51)
CIE-LCH	lch(43.32, 23.62, 275.49°)
OKLab	oklab(51.2% -0.0103 -0.0655)
OKLCH	oklch(51.2% 0.066 261.1)
XYZ	xyz(13.0498, 13.3722, 27.0876)
Luminance	0.1337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51678D #8D7751

analogous

#51858D #51678D #59518D

triadic

#51678D #8D5167 #678D51

tetradic

#51678D #8D5185 #8D7751 #518D59

square

#51678D #8D5185 #8D7751 #518D59

split-complementary

#51678D #8D5951 #858D51

monochromatic

#242E3F #3B4B66 #51678D #6F85AC #96A6C3

Accessibility & contrast

On white

5.71

#51678D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#51678D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51678D

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51678D	#FFFFFF	#000000	##FFFFFF
##51678D	1.00	5.71	3.67	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59698F

Deuteranopia (green-blind)

#53648C

Tritanopia (blue-blind)

#3C6F74

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #51678d;
/* rgb */ color: rgb(81, 103, 141);
/* oklch */ color: oklch(51.2% 0.066 261.1);

Tailwind

colors: {
  custom: {
    50: '#8492ae',
    500: '#51678d',
    950: '#000000',
  },
}

SCSS

$custom: #51678d;
$custom-light: #8492ae;
$custom-dark: #000000;

JSON

{
  "hex": "#51678d",
  "rgb": {
    "r": 81,
    "g": 103,
    "b": 141
  },
  "hsl": {
    "h": 218,
    "s": 27.027,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51195,
    "c": 0.0663,
    "h": 261.1
  },
  "luminance": 0.13373
}

Semantic roles & 50–950 ramp

primary

#51678D

secondary

#AFA28A

accent

#A164C3

background

#F8F8FA

surface

#EFF0F4

border

#CACBCE

text

#0B0D10

muted

#7C7D7F

Preview Lab

Preview with #51678D

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

Preview Lab → · Contrast checker → · Palette generator →