#51689F#51689F

#51689F is a mid, moderate blue. Relative luminance 0.142; OKLCH L 52.4% C 0.092 H 266.1°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#51689F
RGB	rgb(81, 104, 159)
HSL	hsl(222, 33%, 47%)
HSV	hsv(222, 49%, 62%)
CMYK	cmyk(49.1%, 34.6%, 0%, 37.6%)
CIE-LAB	lab(44.45, 7.21, -32.46)
CIE-LCH	lch(44.45, 33.25, 282.53°)
OKLab	oklab(52.35% -0.0063 -0.0913)
OKLCH	oklch(52.35% 0.092 266.1)
XYZ	xyz(14.5996, 14.1522, 34.7565)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51689F #9F8851

analogous

#518F9F #51689F #61519F

triadic

#51689F #9F5168 #689F51

tetradic

#51689F #9F518F #9F8851 #519F61

square

#51689F #9F518F #9F8851 #519F61

split-complementary

#51689F #9F6151 #8F9F51

monochromatic

#28334E #3C4D76 #51689F #7589B9 #9DABCD

Accessibility & contrast

On white

5.48

#51689F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#51689F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51689F

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51689F	#FFFFFF	#000000	##FFFFFF
##51689F	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536DA1

Deuteranopia (green-blind)

#4B669E

Tritanopia (blue-blind)

#31747C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #51689f;
/* rgb */ color: rgb(81, 104, 159);
/* oklch */ color: oklch(52.4% 0.092 266.1);

Tailwind

colors: {
  custom: {
    50: '#8692bb',
    500: '#51689f',
    950: '#000000',
  },
}

SCSS

$custom: #51689f;
$custom-light: #8692bb;
$custom-dark: #000000;

JSON

{
  "hex": "#51689f",
  "rgb": {
    "r": 81,
    "g": 104,
    "b": 159
  },
  "hsl": {
    "h": 222.308,
    "s": 32.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.52353,
    "c": 0.09156,
    "h": 266.1
  },
  "luminance": 0.14153
}

Semantic roles & 50–950 ramp

primary

#51689F

secondary

#BAAE92

accent

#AA5FC9

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0D12

muted

#7C7D81

Preview Lab

Preview with #51689F

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

Preview Lab → · Contrast checker → · Palette generator →