#4C181D
Closest named color: Mahogany (#4A0100). oklch(29.3% 0.079 17.7), rgb(76, 24, 29).
Aa
White text reads best on this color (14.42:1).
About this color
#4C181D is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.079 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.048 away. White text reads best on it, at 14.42:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.45:1 |
| White text | 14.42:1 |
Values
| HEX | #4C181D |
| RGB | rgb(76, 24, 29) |
| HSL | hsl(354, 52%, 20%) |
| OKLCH | oklch(29.3% 0.079 17.7) |
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 #4C181D | 14.42:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #4C181D | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #4C181D text on white | 14.42:1 | AAA | Lc 100.7 | Preferred for body text |
| #4C181D text on black | 1.45:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E3
oklch(93.6% 0.028 17.7)
-
Step 200
200
#FACCCC
oklch(88.5% 0.052 18.2)
-
Step 300
300
#F7A8AA
oklch(80.9% 0.094 17.7)
-
Step 400
400
#EF767D
oklch(70.8% 0.149 18.1)
-
Step 500
500
#E54A5D
oklch(63.1% 0.19 17.6)
-
Step 600
600
#D11F43
oklch(55.7% 0.207 17.8)
-
Step 700
700
#B40935
oklch(49.1% 0.193 17.7)
-
Step 800
800
#92122C
oklch(42.7% 0.159 17.8)
-
Step 900
900
#751A28
oklch(37.6% 0.124 17.3)
-
Step 950
950 (this color)
#4C181D
oklch(29.3% 0.079 17.7)
#4C181D 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) | #25231D | 0.085 |
| Deuteranopia (no green cones) | #322E1C | 0.079 |
| Tritanopia (no blue cones) | #540F1A | 0.021 |
| Achromatopsia (no color) | #2A2A2A | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C181D
#4C181D
oklch(29.3% 0.079 17.7)
- #003435
#003435
oklch(29.5% 0.05 196.9)
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 #4C181D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.048
- Chocolate Brown #411900 ΔE 0.048
- Burgundy #610023 ΔE 0.054
- Deep Brown #410200 ΔE 0.060
- Claret #680018 ΔE 0.063
- Dark Maroon #3C0008 ΔE 0.069
- Dark Brown #341C02 ΔE 0.070
- Dark Plum #3F012C ΔE 0.074
Use #4C181D 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.