#403704#403704

#403704 is a dark, moderate yellow. Relative luminance 0.038; OKLCH L 33.6% C 0.067 H 98.4°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#403704
RGB	rgb(64, 55, 4)
HSL	hsl(51, 88%, 13%)
HSV	hsv(51, 94%, 25%)
CMYK	cmyk(0%, 14.1%, 93.8%, 74.9%)
CIE-LAB	lab(23.11, -2.17, 30.26)
CIE-LCH	lch(23.11, 30.33, 94.11°)
OKLab	oklab(33.64% -0.0097 0.0658)
OKLCH	oklch(33.64% 0.067 98.4)
XYZ	xyz(3.5026, 3.8313, 0.6699)
Luminance	0.0383 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403704 #040D40

analogous

#401904 #403704 #2B4004

triadic

#403704 #044037 #370440

tetradic

#403704 #044019 #040D40 #40042B

square

#403704 #044019 #040D40 #40042B

split-complementary

#403704 #042B40 #190440

monochromatic

#1D1902 #1D1902 #403704 #7A6808 #B39A0B

Accessibility & contrast

On white

11.89

#403704 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#403704 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403704

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403704	#FFFFFF	#000000	##FFFFFF
##403704	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3500

Deuteranopia (green-blind)

#403807

Tritanopia (blue-blind)

#46322E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #403704;
/* rgb */ color: rgb(64, 55, 4);
/* oklch */ color: oklch(33.6% 0.067 98.4);

Tailwind

colors: {
  custom: {
    50: '#786d4a',
    500: '#403704',
    950: '#000000',
  },
}

SCSS

$custom: #403704;
$custom-light: #786d4a;
$custom-dark: #000000;

JSON

{
  "hex": "#403704",
  "rgb": {
    "r": 64,
    "g": 55,
    "b": 4
  },
  "hsl": {
    "h": 51,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.3364,
    "c": 0.06653,
    "h": 98.4
  },
  "luminance": 0.03831
}

Semantic roles & 50–950 ramp

primary

#403704

secondary

#1F2D81

accent

#49FE29

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #403704

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

Preview Lab → · Contrast checker → · Palette generator →