#43100F
Closest named color: Mahogany (#4A0100). oklch(26.1% 0.079 25.4), rgb(67, 16, 15).
Aa
White text reads best on this color (15.91:1).
About this color
#43100F is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.079 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.027 away. White text reads best on it, at 15.91:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.31:1 |
| White text | 15.91:1 |
Values
| HEX | #43100F |
| RGB | rgb(67, 16, 15) |
| HSL | hsl(1, 63%, 16%) |
| OKLCH | oklch(26.1% 0.079 25.4) |
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 #43100F | 15.91:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #43100F | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #43100F text on white | 15.91:1 | AAA | Lc 102.3 | Preferred for body text |
| #43100F text on black | 1.31:1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FACDC8
oklch(88.6% 0.052 25.6)
-
Step 300
300
#F7A9A2
oklch(80.8% 0.093 25)
-
Step 400
400
#EF776F
oklch(70.6% 0.149 25.5)
-
Step 500
500
#E64C49
oklch(63.1% 0.191 25.4)
-
Step 600
600
#D1222B
oklch(55.5% 0.207 25.4)
-
Step 700
700
#B50E1E
oklch(49.1% 0.193 25.4)
-
Step 800
800
#93141B
oklch(42.7% 0.16 25.3)
-
Step 900
900
#761C1C
oklch(37.8% 0.124 25.5)
-
Step 950
950 (this color)
#43100F
oklch(26.1% 0.079 25.4)
#43100F 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) | #1E1B0E | 0.085 |
| Deuteranopia (no green cones) | #2B260D | 0.078 |
| Tritanopia (no blue cones) | #4A0410 | 0.023 |
| Achromatopsia (no color) | #222222 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43100F
#43100F
oklch(26.1% 0.079 25.4)
- #002A2F
#002A2F
oklch(26% 0.045 206.9)
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 #43100F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.027
- Deep Brown #410200 ΔE 0.029
- Chocolate Brown #411900 ΔE 0.033
- Dark Maroon #3C0008 ΔE 0.039
- Dark Brown #341C02 ΔE 0.051
- Dark Plum #3F012C ΔE 0.069
- Burgundy #610023 ΔE 0.076
- Aubergine #3D0734 ΔE 0.077
Use #43100F 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.