#51699D#51699D

#51699D is a mid, moderate blue. Relative luminance 0.143; OKLCH L 52.5% C 0.087 H 264.7°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#51699D
RGB	rgb(81, 105, 157)
HSL	hsl(221, 32%, 47%)
HSV	hsv(221, 48%, 62%)
CMYK	cmyk(48.4%, 33.1%, 0%, 38.4%)
CIE-LAB	lab(44.64, 5.96, -30.98)
CIE-LCH	lch(44.64, 31.55, 280.89°)
OKLab	oklab(52.47% -0.0081 -0.087)
OKLCH	oklch(52.47% 0.087 264.7)
XYZ	xyz(14.5287, 14.2859, 33.8836)
Luminance	0.1429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51699D #9D8551

analogous

#518F9D #51699D #5F519D

triadic

#51699D #9D5169 #699D51

tetradic

#51699D #9D518F #9D8551 #519D5F

square

#51699D #9D518F #9D8551 #519D5F

split-complementary

#51699D #9D5F51 #8F9D51

monochromatic

#27334C #3C4E75 #51699D #7489B7 #9CABCC

Accessibility & contrast

On white

5.44

#51699D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#51699D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51699D

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51699D	#FFFFFF	#000000	##FFFFFF
##51699D	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566D9F

Deuteranopia (green-blind)

#4D669C

Tritanopia (blue-blind)

#32747C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #51699d;
/* rgb */ color: rgb(81, 105, 157);
/* oklch */ color: oklch(52.5% 0.087 264.7);

Tailwind

colors: {
  custom: {
    50: '#8693ba',
    500: '#51699d',
    950: '#000000',
  },
}

SCSS

$custom: #51699d;
$custom-light: #8693ba;
$custom-dark: #000000;

JSON

{
  "hex": "#51699d",
  "rgb": {
    "r": 81,
    "g": 105,
    "b": 157
  },
  "hsl": {
    "h": 221.053,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52468,
    "c": 0.08742,
    "h": 264.7
  },
  "luminance": 0.14287
}

Semantic roles & 50–950 ramp

primary

#51699D

secondary

#B9AC91

accent

#A760C8

background

#F8F9FB

surface

#F0F1F6

border

#CBCBD0

text

#0B0D11

muted

#7C7E80

Preview Lab

Preview with #51699D

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

Preview Lab → · Contrast checker → · Palette generator →