#51663D#51663D

#51663D is a mid, moderate yellow-green. Relative luminance 0.116; OKLCH L 48.2% C 0.067 H 130.6°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#51663D
RGB	rgb(81, 102, 61)
HSL	hsl(91, 25%, 32%)
HSV	hsv(91, 40%, 40%)
CMYK	cmyk(20.6%, 0%, 40.2%, 60%)
CIE-LAB	lab(40.55, -15.99, 20.66)
CIE-LCH	lch(40.55, 26.12, 127.73°)
OKLab	oklab(48.19% -0.0437 0.051)
OKLCH	oklch(48.19% 0.067 130.6)
XYZ	xyz(8.9869, 11.5888, 6.1774)
Luminance	0.1159 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51663D #523D66

analogous

#66663D #51663D #3D663E

triadic

#51663D #3D5166 #663D51

tetradic

#51663D #3D6666 #523D66 #663E3D

square

#51663D #3D6666 #523D66 #663E3D

split-complementary

#51663D #3E3D66 #663D66

monochromatic

#14190F #334026 #51663D #6F8C54 #8EAB72

Accessibility & contrast

On white

6.33

#51663D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#51663D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51663D

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51663D	#FFFFFF	#000000	##FFFFFF
##51663D	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A613A

Deuteranopia (green-blind)

#665F3F

Tritanopia (blue-blind)

#52635C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #51663d;
/* rgb */ color: rgb(81, 102, 61);
/* oklch */ color: oklch(48.2% 0.067 130.6);

Tailwind

colors: {
  custom: {
    50: '#829173',
    500: '#51663d',
    950: '#000000',
  },
}

SCSS

$custom: #51663d;
$custom-light: #829173;
$custom-dark: #000000;

JSON

{
  "hex": "#51663d",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 61
  },
  "hsl": {
    "h": 90.732,
    "s": 25.153,
    "l": 31.961
  },
  "oklch": {
    "l": 0.48194,
    "c": 0.06718,
    "h": 130.6
  },
  "luminance": 0.11589
}

Semantic roles & 50–950 ramp

primary

#51663D

secondary

#806996

accent

#66C295

background

#F8F8F7

surface

#EFF0ED

border

#CACBC8

text

#0A0C08

muted

#7C7D7B

Preview Lab

Preview with #51663D

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

Preview Lab → · Contrast checker → · Palette generator →