#51597E#51597E

#51597E is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.3% C 0.061 H 274.5°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#51597E
RGB	rgb(81, 89, 126)
HSL	hsl(229, 22%, 41%)
HSV	hsv(229, 36%, 49%)
CMYK	cmyk(35.7%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(38.55, 6.52, -21.82)
CIE-LCH	lch(38.55, 22.78, 286.64°)
OKLab	oklab(47.26% 0.0047 -0.0606)
OKLCH	oklch(47.26% 0.061 274.5)
XYZ	xyz(10.7305, 10.4000, 21.1766)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51597E #7E7651

analogous

#516F7E #51597E #5F517E

triadic

#51597E #7E5159 #597E51

tetradic

#51597E #7E516F #7E7651 #517E5F

square

#51597E #7E516F #7E7651 #517E5F

split-complementary

#51597E #7E5F51 #6F7E51

monochromatic

#212433 #393F59 #51597E #6C75A0 #9198B8

Accessibility & contrast

On white

6.82

#51597E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#51597E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51597E

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51597E	#FFFFFF	#000000	##FFFFFF
##51597E	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5D80

Deuteranopia (green-blind)

#4A597D

Tritanopia (blue-blind)

#446066

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #51597e;
/* rgb */ color: rgb(81, 89, 126);
/* oklch */ color: oklch(47.3% 0.061 274.5);

Tailwind

colors: {
  custom: {
    50: '#8387a3',
    500: '#51597e',
    950: '#000000',
  },
}

SCSS

$custom: #51597e;
$custom-light: #8387a3;
$custom-dark: #000000;

JSON

{
  "hex": "#51597e",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 229.333,
    "s": 21.739,
    "l": 40.588
  },
  "oklch": {
    "l": 0.47262,
    "c": 0.06083,
    "h": 274.5
  },
  "luminance": 0.104
}

Semantic roles & 50–950 ramp

primary

#51597E

secondary

#A5A085

accent

#AF6ABE

background

#F8F8FA

surface

#EFEFF4

border

#CACACE

text

#0B0B0F

muted

#7C7C7F

Preview Lab

Preview with #51597E

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

Preview Lab → · Contrast checker → · Palette generator →