#4C181F
Closest named color: Mahogany (#4A0100). oklch(29.4% 0.079 15.3), rgb(76, 24, 31).
Aa
White text reads best on this color (14.40:1).
About this color
#4C181F is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.079 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.050 away. White text reads best on it, at 14.40:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.45:1 |
| White text | 14.40:1 |
Values
| HEX | #4C181F |
| RGB | rgb(76, 24, 31) |
| HSL | hsl(352, 52%, 20%) |
| OKLCH | oklch(29.4% 0.079 15.3) |
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 #4C181F | 14.40:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #4C181F | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #4C181F text on white | 14.40:1 | AAA | Lc 100.7 | Preferred for body text |
| #4C181F 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FCE3E4
oklch(93.6% 0.028 14.9)
-
Step 200
200
#FACCCE
oklch(88.6% 0.052 15.2)
-
Step 300
300
#F7A8AD
oklch(80.9% 0.094 15.2)
-
Step 400
400
#EE7582
oklch(70.6% 0.149 15)
-
Step 500
500
#E54A62
oklch(63.2% 0.19 15.6)
-
Step 600
600
#D01E4A
oklch(55.6% 0.207 15.1)
-
Step 700
700
#B4083B
oklch(49.2% 0.193 15.3)
-
Step 800
800
#921131
oklch(42.7% 0.16 15.2)
-
Step 900
900
#751A2B
oklch(37.6% 0.124 15.3)
-
Step 950
950 (this color)
#4C181F
oklch(29.4% 0.079 15.3)
#4C181F 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) | #24231F | 0.087 |
| Deuteranopia (no green cones) | #312E1E | 0.081 |
| Tritanopia (no blue cones) | #540F1B | 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°).
- #4C181F
#4C181F
oklch(29.4% 0.079 15.3)
- #003434
#003434
oklch(29.4% 0.05 194.8)
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 #4C181F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.050
- Chocolate Brown #411900 ΔE 0.051
- Burgundy #610023 ΔE 0.053
- Deep Brown #410200 ΔE 0.062
- Claret #680018 ΔE 0.063
- Dark Maroon #3C0008 ΔE 0.070
- Dark Plum #3F012C ΔE 0.071
- Dark Brown #341C02 ΔE 0.072
Use #4C181F 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.