#51698D#51698D

#51698D is a mid, moderate blue. Relative luminance 0.138; OKLCH L 51.7% C 0.064 H 258.3°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#51698D
RGB	rgb(81, 105, 141)
HSL	hsl(216, 27%, 44%)
HSV	hsv(216, 43%, 55%)
CMYK	cmyk(42.6%, 25.5%, 0%, 44.7%)
CIE-LAB	lab(43.91, 1.04, -22.60)
CIE-LCH	lch(43.91, 22.62, 272.63°)
OKLab	oklab(51.66% -0.013 -0.0629)
OKLCH	oklch(51.66% 0.064 258.3)
XYZ	xyz(13.2511, 13.7748, 27.1547)
Luminance	0.1378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51698D #8D7551

analogous

#51878D #51698D #57518D

triadic

#51698D #8D5169 #698D51

tetradic

#51698D #8D5187 #8D7551 #518D57

square

#51698D #8D5187 #8D7551 #518D57

split-complementary

#51698D #8D5751 #878D51

monochromatic

#242F3F #3B4C66 #51698D #6F87AC #96A8C3

Accessibility & contrast

On white

5.59

#51698D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#51698D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51698D

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51698D	#FFFFFF	#000000	##FFFFFF
##51698D	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C6B8F

Deuteranopia (green-blind)

#55658C

Tritanopia (blue-blind)

#3C7175

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #51698d;
/* rgb */ color: rgb(81, 105, 141);
/* oklch */ color: oklch(51.7% 0.064 258.3);

Tailwind

colors: {
  custom: {
    50: '#8493ae',
    500: '#51698d',
    950: '#000000',
  },
}

SCSS

$custom: #51698d;
$custom-light: #8493ae;
$custom-dark: #000000;

JSON

{
  "hex": "#51698d",
  "rgb": {
    "r": 81,
    "g": 105,
    "b": 141
  },
  "hsl": {
    "h": 216,
    "s": 27.027,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51657,
    "c": 0.06421,
    "h": 258.3
  },
  "luminance": 0.13776
}

Semantic roles & 50–950 ramp

primary

#51698D

secondary

#AFA18A

accent

#9D64C3

background

#F8F9FA

surface

#EFF1F4

border

#CACBCE

text

#0B0D10

muted

#7C7E7F

Preview Lab

Preview with #51698D

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

Preview Lab → · Contrast checker → · Palette generator →