#51597B#51597B

#51597B is a mid, muted blue. Relative luminance 0.103; OKLCH L 47.1% C 0.056 H 273.9°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#51597B
RGB	rgb(81, 89, 123)
HSL	hsl(229, 21%, 40%)
HSV	hsv(229, 34%, 48%)
CMYK	cmyk(34.1%, 27.6%, 0%, 51.8%)
CIE-LAB	lab(38.42, 5.66, -20.19)
CIE-LCH	lch(38.42, 20.97, 285.65°)
OKLab	oklab(47.11% 0.0038 -0.056)
OKLCH	oklch(47.11% 0.056 273.9)
XYZ	xyz(10.5399, 10.3238, 20.1724)
Luminance	0.1032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51597B #7B7351

analogous

#516E7B #51597B #5E517B

triadic

#51597B #7B5159 #597B51

tetradic

#51597B #7B516E #7B7351 #517B5E

square

#51597B #7B516E #7B7351 #517B5E

split-complementary

#51597B #7B5E51 #6E7B51

monochromatic

#202431 #393E56 #51597B #6B759E #9098B6

Accessibility & contrast

On white

6.85

#51597B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#51597B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51597B

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51597B	#FFFFFF	#000000	##FFFFFF
##51597B	1.00	6.85	3.06	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E5C7C

Deuteranopia (green-blind)

#4B597A

Tritanopia (blue-blind)

#456065

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #51597b;
/* rgb */ color: rgb(81, 89, 123);
/* oklch */ color: oklch(47.1% 0.056 273.9);

Tailwind

colors: {
  custom: {
    50: '#8387a1',
    500: '#51597b',
    950: '#000000',
  },
}

SCSS

$custom: #51597b;
$custom-light: #8387a1;
$custom-dark: #000000;

JSON

{
  "hex": "#51597b",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 123
  },
  "hsl": {
    "h": 228.571,
    "s": 20.588,
    "l": 40
  },
  "oklch": {
    "l": 0.47114,
    "c": 0.05611,
    "h": 273.9
  },
  "luminance": 0.10324
}

Semantic roles & 50–950 ramp

primary

#51597B

secondary

#A39D84

accent

#AD6BBD

background

#F8F8F9

surface

#EFEFF2

border

#CACACC

text

#0B0B0F

muted

#7C7C7E

Preview Lab

Preview with #51597B

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

Preview Lab → · Contrast checker → · Palette generator →