#51699C#51699C

#51699C is a mid, moderate blue. Relative luminance 0.143; OKLCH L 52.4% C 0.086 H 264.4°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#51699C
RGB	rgb(81, 105, 156)
HSL	hsl(221, 32%, 46%)
HSV	hsv(221, 48%, 61%)
CMYK	cmyk(48.1%, 32.7%, 0%, 38.8%)
CIE-LAB	lab(44.59, 5.65, -30.46)
CIE-LCH	lch(44.59, 30.98, 280.50°)
OKLab	oklab(52.42% -0.0084 -0.0855)
OKLCH	oklch(52.42% 0.086 264.4)
XYZ	xyz(14.4437, 14.2519, 33.4358)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51699C #9C8451

analogous

#518F9C #51699C #5F519C

triadic

#51699C #9C5169 #699C51

tetradic

#51699C #9C518F #9C8451 #519C5F

square

#51699C #9C518F #9C8451 #519C5F

split-complementary

#51699C #9C5F51 #8F9C51

monochromatic

#27334B #3C4E74 #51699C #7489B7 #9CABCC

Accessibility & contrast

On white

5.45

#51699C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#51699C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51699C

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51699C	#FFFFFF	#000000	##FFFFFF
##51699C	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566D9E

Deuteranopia (green-blind)

#4E669B

Tritanopia (blue-blind)

#33747B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #51699c;
/* rgb */ color: rgb(81, 105, 156);
/* oklch */ color: oklch(52.4% 0.086 264.4);

Tailwind

colors: {
  custom: {
    50: '#8693b9',
    500: '#51699c',
    950: '#000000',
  },
}

SCSS

$custom: #51699c;
$custom-light: #8693b9;
$custom-dark: #000000;

JSON

{
  "hex": "#51699c",
  "rgb": {
    "r": 81,
    "g": 105,
    "b": 156
  },
  "hsl": {
    "h": 220.8,
    "s": 31.646,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52415,
    "c": 0.08595,
    "h": 264.4
  },
  "luminance": 0.14253
}

Semantic roles & 50–950 ramp

primary

#51699C

secondary

#B8AC90

accent

#A760C8

background

#F8F9FB

surface

#F0F1F6

border

#CBCBD0

text

#0B0D11

muted

#7C7E80

Preview Lab

Preview with #51699C

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

Preview Lab → · Contrast checker → · Palette generator →