#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
RGBrgb(81, 104, 157)
HSLhsl(222, 32%, 47%)
HSVhsv(222, 48%, 62%)
CMYKcmyk(48.4%, 33.8%, 0%, 38.4%)
CIE-LABlab(44.35, 6.58, -31.43)
CIE-LCHlch(44.35, 32.11, 281.82°)
OKLaboklab(52.25% -0.0068 -0.0883)
OKLCHoklch(52.25% 0.089 265.6)
XYZxyz(14.4275, 14.0834, 33.8499)
Luminance0.1408 (WCAG relative)
Temperaturecool
Familyblue

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
##51689D1.005.503.825.50
#FFFFFF5.501.0021.001.00
#0000003.8221.001.0021.00
##FFFFFF5.501.0021.001.00

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 →

#51689D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva