#4A100C
Closest named color: Mahogany (#4A0100). oklch(27.5% 0.088 28.3), rgb(74, 16, 12).
Aa
White text reads best on this color (15.32:1).
About this color
#4A100C is a dark, moderately saturated red. In OKLCH its lightness is 28%, its chroma 0.088 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.024 away. White text reads best on it, at 15.32:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.37:1 |
| White text | 15.32:1 |
Values
| HEX | #4A100C |
| RGB | rgb(74, 16, 12) |
| HSL | hsl(4, 72%, 17%) |
| OKLCH | oklch(27.5% 0.088 28.3) |
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 #4A100C | 15.32:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #4A100C | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #4A100C text on white | 15.32:1 | AAA | Lc 101.5 | Preferred for body text |
| #4A100C text on black | 1.37:1 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DF
oklch(93.7% 0.03 27.8)
-
Step 200
200
#FDCBC4
oklch(88.4% 0.058 27.5)
-
Step 300
300
#FDA79B
oklch(81% 0.104 28.3)
-
Step 400
400
#F77163
oklch(70.7% 0.167 28.1)
-
Step 500
500
#EF3F35
oklch(63.1% 0.214 28.3)
-
Step 600
600
#D9000C
oklch(55.6% 0.228 28.3)
-
Step 700
700
#B80008
oklch(49.2% 0.201 28.3)
-
Step 800
800
#980006
oklch(42.7% 0.175 28.2)
-
Step 900
900
#7B120F
oklch(37.7% 0.139 28.2)
-
Step 950
950 (this color)
#4A100C
oklch(27.5% 0.088 28.3)
#4A100C 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) | #211D0B | 0.094 |
| Deuteranopia (no green cones) | #2F2A0A | 0.087 |
| Tritanopia (no blue cones) | #520010 | 0.028 |
| Achromatopsia (no color) | #252525 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A100C
#4A100C
oklch(27.5% 0.088 28.3)
- #002E34
#002E34
oklch(27.6% 0.047 208.4)
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 #4A100C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.024
- Chocolate Brown #411900 ΔE 0.034
- Deep Brown #410200 ΔE 0.038
- Dark Maroon #3C0008 ΔE 0.051
- Dark Brown #341C02 ΔE 0.059
- Burgundy #610023 ΔE 0.065
- Claret #680018 ΔE 0.070
- Dark Plum #3F012C ΔE 0.078
Use #4A100C 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.