#4B001B
Closest named color: Mahogany (#4A0100). oklch(26.4% 0.106 8.1), rgb(75, 0, 27).
Aa
White text reads best on this color (15.96:1).
About this color
#4B001B is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.106 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.040 away. White text reads best on it, at 15.96:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.106) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.31:1 |
| White text | 15.96:1 |
Values
| HEX | #4B001B |
| RGB | rgb(75, 0, 27) |
| HSL | hsl(338, 100%, 15%) |
| OKLCH | oklch(26.4% 0.106 8.1) |
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 #4B001B | 15.96:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #4B001B | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #4B001B text on white | 15.96:1 | AAA | Lc 101.6 | Preferred for body text |
| #4B001B 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
#FFF2F3
oklch(97.2% 0.014 12)
-
Step 100
100
#FFE1E5
oklch(93.5% 0.033 8.6)
-
Step 200
200
#FFC9D1
oklch(88.6% 0.062 8.5)
-
Step 300
300
#FFA2B3
oklch(81% 0.112 8)
-
Step 400
400
#FF6289
oklch(70.7% 0.192 8.3)
-
Step 500
500
#FA006C
oklch(63.1% 0.253 8)
-
Step 600
600
#D3005A
oklch(55.5% 0.222 8)
-
Step 700
700
#B3004B
oklch(49.1% 0.197 8.1)
-
Step 800
800
#94003D
oklch(42.7% 0.171 7.9)
-
Step 900
900
#7D0032
oklch(37.8% 0.151 8.1)
-
Step 950
950 (this color)
#4B001B
oklch(26.4% 0.106 8.1)
#4B001B 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) | #17181B | 0.120 |
| Deuteranopia (no green cones) | #2A2719 | 0.109 |
| Tritanopia (no blue cones) | #53000C | 0.031 |
| Achromatopsia (no color) | #222222 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B001B
#4B001B
oklch(26.4% 0.106 8.1)
- #002C29
#002C29
oklch(26.4% 0.046 187.8)
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 #4B001B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.040
- Dark Plum #3F012C ΔE 0.046
- Dark Maroon #3C0008 ΔE 0.047
- Deep Brown #410200 ΔE 0.048
- Burgundy #610023 ΔE 0.054
- Aubergine #3D0734 ΔE 0.058
- Eggplant #380835 ΔE 0.068
- Chocolate Brown #411900 ΔE 0.070
Use #4B001B 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.