#403911#403911

#403911 is a dark, muted yellow. Relative luminance 0.041; OKLCH L 34.3% C 0.058 H 99.3°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#403911
RGB	rgb(64, 57, 17)
HSL	hsl(51, 58%, 16%)
HSV	hsv(51, 73%, 25%)
CMYK	cmyk(0%, 10.9%, 73.4%, 74.9%)
CIE-LAB	lab(23.86, -2.67, 25.23)
CIE-LCH	lch(23.86, 25.37, 96.05°)
OKLab	oklab(34.27% -0.0094 0.0573)
OKLCH	oklch(34.27% 0.058 99.3)
XYZ	xyz(3.6788, 4.0569, 1.1195)
Luminance	0.0406 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403911 #111840

analogous

#402111 #403911 #2F4011

triadic

#403911 #114039 #391140

tetradic

#403911 #114021 #111840 #40112F

square

#403911 #114021 #111840 #40112F

split-complementary

#403911 #112F40 #211140

monochromatic

#181606 #181606 #403911 #70641E #A18F2B

Accessibility & contrast

On white

11.59

#403911 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#403911 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403911

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403911	#FFFFFF	#000000	##FFFFFF
##403911	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F370C

Deuteranopia (green-blind)

#413A13

Tritanopia (blue-blind)

#453431

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #403911;
/* rgb */ color: rgb(64, 57, 17);
/* oklch */ color: oklch(34.3% 0.058 99.3);

Tailwind

colors: {
  custom: {
    50: '#776f51',
    500: '#403911',
    950: '#000000',
  },
}

SCSS

$custom: #403911;
$custom-light: #776f51;
$custom-dark: #000000;

JSON

{
  "hex": "#403911",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 17
  },
  "hsl": {
    "h": 51.064,
    "s": 58.025,
    "l": 15.882
  },
  "oklch": {
    "l": 0.3427,
    "c": 0.05806,
    "h": 99.3
  },
  "luminance": 0.04057
}

Semantic roles & 50–950 ramp

primary

#403911

secondary

#333E79

accent

#5EE147

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #403911

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

Preview Lab → · Contrast checker → · Palette generator →