#3B100D
Closest named color: Deep Brown (#410200). oklch(24.5% 0.069 27.3), rgb(59, 16, 13).
Aa
White text reads best on this color (16.58:1).
About this color
#3B100D is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.069 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.027 away. White text reads best on it, at 16.58:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.26:1 |
| White text | 16.58:1 |
Values
| HEX | #3B100D |
| RGB | rgb(59, 16, 13) |
| HSL | hsl(4, 64%, 14%) |
| OKLCH | oklch(24.5% 0.069 27.3) |
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 #3B100D | 16.58:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #3B100D | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #3B100D text on white | 16.58:1 | AAA | Lc 103.1 | Preferred for body text |
| #3B100D text on black | 1.26:1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E4E1
oklch(93.5% 0.023 27.3)
-
Step 200
200
#F6CEC9
oklch(88.4% 0.046 26.4)
-
Step 300
300
#F1ADA4
oklch(80.9% 0.082 27.5)
-
Step 400
400
#E67E73
oklch(70.6% 0.13 27.2)
-
Step 500
500
#DC594F
oklch(63.1% 0.166 27.2)
-
Step 600
600
#C73832
oklch(55.5% 0.181 27.2)
-
Step 700
700
#AC2925
oklch(49.2% 0.168 27.3)
-
Step 800
800
#8B2420
oklch(42.6% 0.139 27.1)
-
Step 900
900
#70241F
oklch(37.6% 0.109 27.3)
-
Step 950
950 (this color)
#3B100D
oklch(24.5% 0.069 27.3)
#3B100D 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) | #1C190C | 0.072 |
| Deuteranopia (no green cones) | #26220C | 0.067 |
| Tritanopia (no blue cones) | #420710 | 0.023 |
| Achromatopsia (no color) | #1E1E1E | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B100D
#3B100D
oklch(24.5% 0.069 27.3)
- #00262B
#00262B
oklch(24.6% 0.042 207.9)
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 #3B100D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.027
- Dark Maroon #3C0008 ΔE 0.031
- Chocolate Brown #411900 ΔE 0.037
- Mahogany #4A0100 ΔE 0.038
- Dark Brown #341C02 ΔE 0.042
- Dark Plum #3F012C ΔE 0.070
- Aubergine #3D0734 ΔE 0.078
- Jet #212529 ΔE 0.078
Use #3B100D 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.