#403910#403910

#403910 is a dark, muted yellow. Relative luminance 0.041; OKLCH L 34.3% C 0.059 H 99.5°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#403910
RGB	rgb(64, 57, 16)
HSL	hsl(51, 60%, 16%)
HSV	hsv(51, 75%, 25%)
CMYK	cmyk(0%, 10.9%, 75%, 74.9%)
CIE-LAB	lab(23.85, -2.75, 25.74)
CIE-LCH	lch(23.85, 25.89, 96.09°)
OKLab	oklab(34.26% -0.0098 0.0582)
OKLCH	oklch(34.26% 0.059 99.5)
XYZ	xyz(3.6712, 4.0538, 1.0792)
Luminance	0.0405 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403910 #101740

analogous

#402110 #403910 #2F4010

triadic

#403910 #104039 #391040

tetradic

#403910 #104021 #101740 #40102F

square

#403910 #104021 #101740 #40102F

split-complementary

#403910 #102F40 #211040

monochromatic

#181606 #181606 #403910 #71651C #A29028

Accessibility & contrast

On white

11.60

#403910 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#403910 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403910

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403910	#FFFFFF	#000000	##FFFFFF
##403910	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F370B

Deuteranopia (green-blind)

#413A12

Tritanopia (blue-blind)

#453430

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #403910;
/* rgb */ color: rgb(64, 57, 16);
/* oklch */ color: oklch(34.3% 0.059 99.5);

Tailwind

colors: {
  custom: {
    50: '#776f50',
    500: '#403910',
    950: '#000000',
  },
}

SCSS

$custom: #403910;
$custom-light: #776f50;
$custom-dark: #000000;

JSON

{
  "hex": "#403910",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 16
  },
  "hsl": {
    "h": 51.25,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.34259,
    "c": 0.05899,
    "h": 99.5
  },
  "luminance": 0.04054
}

Semantic roles & 50–950 ramp

primary

#403910

secondary

#323C7A

accent

#5CE345

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #403910

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

Preview Lab → · Contrast checker → · Palette generator →