#403C0B#403C0B
#403C0B is a dark, moderate yellow. Relative luminance 0.043; OKLCH L 35.0% C 0.066 H 104.6°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).
Color values
| HEX | #403C0B |
|---|---|
| RGB | rgb(64, 60, 11) |
| HSL | hsl(55, 71%, 15%) |
| HSV | hsv(55, 83%, 25%) |
| CMYK | cmyk(0%, 6.2%, 82.8%, 74.9%) |
| CIE-LAB | lab(24.78, -4.96, 29.06) |
| CIE-LCH | lch(24.78, 29.48, 99.69°) |
| OKLab | oklab(34.99% -0.0167 0.0641) |
| OKLCH | oklch(34.99% 0.066 104.6) |
| XYZ | xyz(3.7908, 4.3460, 0.9557) |
| Luminance | 0.0435 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Dark Olive
#373E02
ΔE00 4.52
Green Brown
#544E03
ΔE00 7.25
Dark Olive Green
#3C4D03
ΔE00 8.88
Mud Brown
#60460F
ΔE00 10.07
Olive Brown
#645403
ΔE00 10.82
Navy Green
#35530A
ΔE00 12.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#403C0B #0B0F40
analogous
#40220B #403C0B #2A400B
triadic
#403C0B #0B403C #3C0B40
tetradic
#403C0B #0B4022 #0B0F40 #400B2A
square
#403C0B #0B4022 #0B0F40 #400B2A
split-complementary
#403C0B #0B2A40 #220B40
monochromatic
#1A1804 #1A1804 #403C0B #746D14 #A89E1D
Accessibility & contrast
On white
11.23
#403C0B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.87
#403C0B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #403C0B
11.23:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##403C0B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##403C0B | 1.00 | 11.23 | 1.87 | 11.23 |
| #FFFFFF | 11.23 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.87 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.23 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#423A04
Deuteranopia (green-blind)
#433C0E
Tritanopia (blue-blind)
#453733
Achromatopsia (no color)
#3B3B3B
Design tokens & code
CSS
--color: #403c0b; /* rgb */ color: rgb(64, 60, 11); /* oklch */ color: oklch(35.0% 0.066 104.6);
Tailwind
colors: {
custom: {
50: '#77714e',
500: '#403c0b',
950: '#000000',
},
}SCSS
$custom: #403c0b; $custom-light: #77714e; $custom-dark: #000000;
JSON
{
"hex": "#403c0b",
"rgb": {
"r": 64,
"g": 60,
"b": 11
},
"hsl": {
"h": 55.472,
"s": 70.667,
"l": 14.706
},
"oklch": {
"l": 0.34989,
"c": 0.06628,
"h": 104.6
},
"luminance": 0.04346
}Semantic roles & 50–950 ramp
primary
#403C0B
secondary
#2A307D
accent
#48ED3A
background
#F7F6F4
surface
#EDECE7
border
#C8C7C3
text
#090702
muted
#7B7A78