#40180D
Closest named color: Chocolate Brown (#411900). oklch(26.8% 0.066 36.3), rgb(64, 24, 13).
Aa
White text reads best on this color (15.50:1).
About this color
#40180D is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.066 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.017 away. White text reads best on it, at 15.50:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.066) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.35:1 |
| White text | 15.50:1 |
Values
| HEX | #40180D |
| RGB | rgb(64, 24, 13) |
| HSL | hsl(13, 66%, 15%) |
| OKLCH | oklch(26.8% 0.066 36.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #40180D | 15.50:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #40180D | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #40180D text on white | 15.50:1 | AAA | Lc 102.1 | Preferred for body text |
| #40180D text on black | 1.35:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F4D0C6
oklch(88.5% 0.043 36)
-
Step 300
300
#EEAF9E
oklch(80.8% 0.078 35.7)
-
Step 400
400
#E38368
oklch(70.8% 0.125 36.6)
-
Step 500
500
#D85F3E
oklch(63.1% 0.16 36.2)
-
Step 600
600
#C3411A
oklch(55.6% 0.173 36.2)
-
Step 700
700
#A8320A
oklch(49.2% 0.16 36.4)
-
Step 800
800
#882B0E
oklch(42.7% 0.133 36.5)
-
Step 900
900
#6E2815
oklch(37.7% 0.104 36)
-
Step 950
950 (this color)
#40180D
oklch(26.8% 0.066 36.3)
#40180D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #231F0C | 0.065 |
| Deuteranopia (no green cones) | #2D270C | 0.058 |
| Tritanopia (no blue cones) | #471016 | 0.029 |
| Achromatopsia (no color) | #242424 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40180D
#40180D
oklch(26.8% 0.066 36.3)
- #002B35
#002B35
oklch(26.7% 0.048 217.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #40180D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.017
- Dark Brown #341C02 ΔE 0.034
- Mahogany #4A0100 ΔE 0.041
- Deep Brown #410200 ΔE 0.042
- Dark Maroon #3C0008 ΔE 0.054
- Jet #212529 ΔE 0.074
- Dark Plum #3F012C ΔE 0.084
- Burgundy #610023 ΔE 0.087
Use #40180D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.