#51597D#51597D

#51597D is a mid, muted blue. Relative luminance 0.104; OKLCH L 47.2% C 0.059 H 274.3°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#51597D
RGB	rgb(81, 89, 125)
HSL	hsl(229, 21%, 40%)
HSV	hsv(229, 35%, 49%)
CMYK	cmyk(35.2%, 28.8%, 0%, 51%)
CIE-LAB	lab(38.51, 6.23, -21.28)
CIE-LCH	lch(38.51, 22.17, 286.32°)
OKLab	oklab(47.21% 0.0044 -0.0591)
OKLCH	oklch(47.21% 0.059 274.3)
XYZ	xyz(10.6663, 10.3744, 20.8385)
Luminance	0.1037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51597D #7D7551

analogous

#516F7D #51597D #5F517D

triadic

#51597D #7D5159 #597D51

tetradic

#51597D #7D516F #7D7551 #517D5F

square

#51597D #7D516F #7D7551 #517D5F

split-complementary

#51597D #7D5F51 #6F7D51

monochromatic

#212433 #393F58 #51597D #6C75A0 #9198B8

Accessibility & contrast

On white

6.83

#51597D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#51597D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51597D

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51597D	#FFFFFF	#000000	##FFFFFF
##51597D	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E5D7F

Deuteranopia (green-blind)

#4B597C

Tritanopia (blue-blind)

#456066

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #51597d;
/* rgb */ color: rgb(81, 89, 125);
/* oklch */ color: oklch(47.2% 0.059 274.3);

Tailwind

colors: {
  custom: {
    50: '#8387a2',
    500: '#51597d',
    950: '#000000',
  },
}

SCSS

$custom: #51597d;
$custom-light: #8387a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51597d",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 125
  },
  "hsl": {
    "h": 229.091,
    "s": 21.359,
    "l": 40.392
  },
  "oklch": {
    "l": 0.47212,
    "c": 0.05926,
    "h": 274.3
  },
  "luminance": 0.10375
}

Semantic roles & 50–950 ramp

primary

#51597D

secondary

#A59F85

accent

#AF6ABE

background

#F8F8FA

surface

#EFEFF3

border

#CACACD

text

#0B0B0F

muted

#7C7C7F

Preview Lab

Preview with #51597D

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

Preview Lab → · Contrast checker → · Palette generator →