#51689D#51689D

#51689D is a mid, moderate blue. Relative luminance 0.141; OKLCH L 52.2% C 0.089 H 265.6°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#51689D
RGB	rgb(81, 104, 157)
HSL	hsl(222, 32%, 47%)
HSV	hsv(222, 48%, 62%)
CMYK	cmyk(48.4%, 33.8%, 0%, 38.4%)
CIE-LAB	lab(44.35, 6.58, -31.43)
CIE-LCH	lch(44.35, 32.11, 281.82°)
OKLab	oklab(52.25% -0.0068 -0.0883)
OKLCH	oklch(52.25% 0.089 265.6)
XYZ	xyz(14.4275, 14.0834, 33.8499)
Luminance	0.1408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51689D #9D8651

analogous

#518E9D #51689D #60519D

triadic

#51689D #9D5168 #689D51

tetradic

#51689D #9D518E #9D8651 #519D60

square

#51689D #9D518E #9D8651 #519D60

split-complementary

#51689D #9D6051 #8E9D51

monochromatic

#27334C #3C4D75 #51689D #7488B7 #9CABCC

Accessibility & contrast

On white

5.50

#51689D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#51689D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51689D

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51689D	#FFFFFF	#000000	##FFFFFF
##51689D	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546D9F

Deuteranopia (green-blind)

#4C669C

Tritanopia (blue-blind)

#32737B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #51689d;
/* rgb */ color: rgb(81, 104, 157);
/* oklch */ color: oklch(52.2% 0.089 265.6);

Tailwind

colors: {
  custom: {
    50: '#8692ba',
    500: '#51689d',
    950: '#000000',
  },
}

SCSS

$custom: #51689d;
$custom-light: #8692ba;
$custom-dark: #000000;

JSON

{
  "hex": "#51689d",
  "rgb": {
    "r": 81,
    "g": 104,
    "b": 157
  },
  "hsl": {
    "h": 221.842,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52245,
    "c": 0.08861,
    "h": 265.6
  },
  "luminance": 0.14084
}

Semantic roles & 50–950 ramp

primary

#51689D

secondary

#B9AD91

accent

#A960C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0D11

muted

#7C7D80

Preview Lab

Preview with #51689D

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

Preview Lab → · Contrast checker → · Palette generator →