#40330B#40330B

#40330B is a dark, muted yellow. Relative luminance 0.035; OKLCH L 32.7% C 0.058 H 90.3°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#40330B
RGB	rgb(64, 51, 11)
HSL	hsl(45, 71%, 15%)
HSV	hsv(45, 83%, 25%)
CMYK	cmyk(0%, 20.3%, 82.8%, 74.9%)
CIE-LAB	lab(21.88, 0.81, 26.11)
CIE-LCH	lch(21.88, 26.13, 88.23°)
OKLab	oklab(32.69% -0.0003 0.0582)
OKLCH	oklch(32.69% 0.058 90.3)
XYZ	xyz(3.3588, 3.4820, 0.8117)
Luminance	0.0348 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40330B #0B1840

analogous

#40190B #40330B #33400B

triadic

#40330B #0B4033 #330B40

tetradic

#40330B #0B4019 #0B1840 #400B33

square

#40330B #0B4019 #0B1840 #400B33

split-complementary

#40330B #0B3340 #190B40

monochromatic

#1A1504 #1A1504 #40330B #745D14 #A8861D

Accessibility & contrast

On white

12.38

#40330B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#40330B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40330B

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40330B	#FFFFFF	#000000	##FFFFFF
##40330B	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3206

Deuteranopia (green-blind)

#3D360D

Tritanopia (blue-blind)

#462E2B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #40330b;
/* rgb */ color: rgb(64, 51, 11);
/* oklch */ color: oklch(32.7% 0.058 90.3);

Tailwind

colors: {
  custom: {
    50: '#776a4d',
    500: '#40330b',
    950: '#000000',
  },
}

SCSS

$custom: #40330b;
$custom-light: #776a4d;
$custom-dark: #000000;

JSON

{
  "hex": "#40330b",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 11
  },
  "hsl": {
    "h": 45.283,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.32687,
    "c": 0.05816,
    "h": 90.3
  },
  "luminance": 0.03482
}

Semantic roles & 50–950 ramp

primary

#40330B

secondary

#2A3E7D

accent

#66ED3A

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090601

muted

#7B7A77

Preview Lab

Preview with #40330B

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

Preview Lab → · Contrast checker → · Palette generator →