#51669F#51669F

#51669F is a mid, moderate blue. Relative luminance 0.138; OKLCH L 51.9% C 0.094 H 267.7°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#51669F
RGB	rgb(81, 102, 159)
HSL	hsl(224, 33%, 47%)
HSV	hsv(224, 49%, 62%)
CMYK	cmyk(49.1%, 35.8%, 0%, 37.6%)
CIE-LAB	lab(43.88, 8.46, -33.36)
CIE-LCH	lch(43.88, 34.41, 284.22°)
OKLab	oklab(51.91% -0.0037 -0.094)
OKLCH	oklch(51.91% 0.094 267.7)
XYZ	xyz(14.4007, 13.7544, 34.6902)
Luminance	0.1376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51669F #9F8A51

analogous

#518D9F #51669F #63519F

triadic

#51669F #9F5166 #669F51

tetradic

#51669F #9F518D #9F8A51 #519F63

square

#51669F #9F518D #9F8A51 #519F63

split-complementary

#51669F #9F6351 #8D9F51

monochromatic

#28324E #3C4C76 #51669F #7587B9 #9DAACD

Accessibility & contrast

On white

5.60

#51669F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#51669F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51669F

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51669F	#FFFFFF	#000000	##FFFFFF
##51669F	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516BA1

Deuteranopia (green-blind)

#48659E

Tritanopia (blue-blind)

#31727B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #51669f;
/* rgb */ color: rgb(81, 102, 159);
/* oklch */ color: oklch(51.9% 0.094 267.7);

Tailwind

colors: {
  custom: {
    50: '#8691bb',
    500: '#51669f',
    950: '#000000',
  },
}

SCSS

$custom: #51669f;
$custom-light: #8691bb;
$custom-dark: #000000;

JSON

{
  "hex": "#51669f",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 159
  },
  "hsl": {
    "h": 223.846,
    "s": 32.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.5191,
    "c": 0.09403,
    "h": 267.7
  },
  "luminance": 0.13755
}

Semantic roles & 50–950 ramp

primary

#51669F

secondary

#BAAF92

accent

#AC5FC9

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0C12

muted

#7C7D81

Preview Lab

Preview with #51669F

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

Preview Lab → · Contrast checker → · Palette generator →