#4D101F
Closest named color: Mahogany (#4A0100). oklch(28.5% 0.091 10.7), rgb(77, 16, 31).
Aa
White text reads best on this color (14.89:1).
About this color
#4D101F is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.091 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.044 away. White text reads best on it, at 14.89:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.40:1 |
| White text | 14.89:1 |
Values
| HEX | #4D101F |
| RGB | rgb(77, 16, 31) |
| HSL | hsl(345, 66%, 18%) |
| OKLCH | oklch(28.5% 0.091 10.7) |
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 #4D101F | 14.89:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #4D101F | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #4D101F text on white | 14.89:1 | AAA | Lc 101.1 | Preferred for body text |
| #4D101F text on black | 1.40:1 | 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
#FFF2F3
oklch(97.2% 0.014 12)
-
Step 100
100
#FEE2E5
oklch(93.6% 0.031 10.3)
-
Step 200
200
#FECACF
oklch(88.6% 0.059 11.9)
-
Step 300
300
#FDA3B0
oklch(80.8% 0.108 10.3)
-
Step 400
400
#F76C86
oklch(70.7% 0.171 11)
-
Step 500
500
#EF3569
oklch(63.1% 0.22 10.6)
-
Step 600
600
#D40053
oklch(55.6% 0.222 10.7)
-
Step 700
700
#B40045
oklch(49.2% 0.197 10.8)
-
Step 800
800
#950038
oklch(42.8% 0.171 10.6)
-
Step 900
900
#7B0A2F
oklch(37.8% 0.143 10.6)
-
Step 950
950 (this color)
#4D101F
oklch(28.5% 0.091 10.7)
#4D101F 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) | #1F1F1F | 0.102 |
| Deuteranopia (no green cones) | #2F2C1D | 0.094 |
| Tritanopia (no blue cones) | #550316 | 0.023 |
| Achromatopsia (no color) | #272727 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D101F
#4D101F
oklch(28.5% 0.091 10.7)
- #003230
#003230
oklch(28.6% 0.049 190.5)
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 #4D101F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.044
- Burgundy #610023 ΔE 0.046
- Deep Brown #410200 ΔE 0.057
- Chocolate Brown #411900 ΔE 0.059
- Dark Plum #3F012C ΔE 0.060
- Claret #680018 ΔE 0.061
- Dark Maroon #3C0008 ΔE 0.062
- Aubergine #3D0734 ΔE 0.065
Use #4D101F 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.