#666A58#666A58

#666A58 is a mid, muted yellow-green. Relative luminance 0.138; OKLCH L 51.5% C 0.028 H 117.6°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#666A58
RGB	rgb(102, 106, 88)
HSL	hsl(73, 9%, 38%)
HSV	hsv(73, 17%, 42%)
CMYK	cmyk(3.8%, 0%, 17%, 58.4%)
CIE-LAB	lab(44.00, -5.06, 9.60)
CIE-LCH	lch(44.00, 10.85, 117.80°)
OKLab	oklab(51.54% -0.0129 0.0247)
OKLCH	oklch(51.54% 0.028 117.6)
XYZ	xyz(12.3948, 13.8375, 11.2485)
Luminance	0.1384 (WCAG relative)
Temperature	neutral
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A58 #5C586A

analogous

#6A6558 #666A58 #5D6A58

triadic

#666A58 #58666A #6A5866

tetradic

#666A58 #586A65 #5C586A #6A585D

square

#666A58 #586A65 #5C586A #6A585D

split-complementary

#666A58 #585D6A #65586A

monochromatic

#262720 #46493C #666A58 #868B74 #A3A795

Accessibility & contrast

On white

5.57

#666A58 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#666A58 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A58

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A58	#FFFFFF	#000000	##FFFFFF
##666A58	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6857

Deuteranopia (green-blind)

#6C6859

Tritanopia (blue-blind)

#686865

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666a58;
/* rgb */ color: rgb(102, 106, 88);
/* oklch */ color: oklch(51.5% 0.028 117.6);

Tailwind

colors: {
  custom: {
    50: '#919487',
    500: '#666a58',
    950: '#000000',
  },
}

SCSS

$custom: #666a58;
$custom-light: #919487;
$custom-dark: #000000;

JSON

{
  "hex": "#666a58",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 88
  },
  "hsl": {
    "h": 73.333,
    "s": 9.278,
    "l": 38.039
  },
  "oklch": {
    "l": 0.51541,
    "c": 0.02791,
    "h": 117.6
  },
  "luminance": 0.13837
}

Semantic roles & 50–950 ramp

primary

#666A58

secondary

#8B8896

accent

#76B283

background

#F8F9F8

surface

#F0F1EF

border

#CBCBCA

text

#0C0D0B

muted

#7D7E7C

Preview Lab

Preview with #666A58

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

Preview Lab → · Contrast checker → · Palette generator →