#403F28#403F28

#403F28 is a dark, muted yellow. Relative luminance 0.048; OKLCH L 36.2% C 0.037 H 106.0°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#403F28
RGB	rgb(64, 63, 40)
HSL	hsl(58, 23%, 20%)
HSV	hsv(58, 38%, 25%)
CMYK	cmyk(0%, 1.6%, 37.5%, 74.9%)
CIE-LAB	lab(26.15, -3.88, 14.30)
CIE-LCH	lch(26.15, 14.81, 105.17°)
OKLab	oklab(36.2% -0.0101 0.0355)
OKLCH	oklch(36.2% 0.037 106)
XYZ	xyz(4.2749, 4.7983, 2.7080)
Luminance	0.0480 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F28 #282940

analogous

#403328 #403F28 #354028

triadic

#403F28 #28403F #3F2840

tetradic

#403F28 #284033 #282940 #402835

square

#403F28 #284033 #282940 #402835

split-complementary

#403F28 #283540 #332840

monochromatic

#13130C #1A1A10 #403F28 #666440 #8B8957

Accessibility & contrast

On white

10.72

#403F28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#403F28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F28

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F28	#FFFFFF	#000000	##FFFFFF
##403F28	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433D26

Deuteranopia (green-blind)

#433E29

Tritanopia (blue-blind)

#433C39

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #403f28;
/* rgb */ color: rgb(64, 63, 40);
/* oklch */ color: oklch(36.2% 0.037 106.0);

Tailwind

colors: {
  custom: {
    50: '#757362',
    500: '#403f28',
    950: '#000000',
  },
}

SCSS

$custom: #403f28;
$custom-light: #757362;
$custom-dark: #000000;

JSON

{
  "hex": "#403f28",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 57.5,
    "s": 23.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.36202,
    "c": 0.03687,
    "h": 106
  },
  "luminance": 0.04798
}

Semantic roles & 50–950 ramp

primary

#403F28

secondary

#525372

accent

#6CC068

background

#F7F7F5

surface

#EDEDEA

border

#C8C8C6

text

#080805

muted

#7B7B79

Preview Lab

Preview with #403F28

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

Preview Lab → · Contrast checker → · Palette generator →