#3B100B
Closest named color: Deep Brown (#410200). oklch(24.5% 0.069 29.6), rgb(59, 16, 11).
Aa
White text reads best on this color (16.60:1).
About this color
#3B100B is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.069 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.026 away. White text reads best on it, at 16.60:1.
| 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 | 16.60:1 |
Values
| HEX | #3B100B |
| RGB | rgb(59, 16, 11) |
| HSL | hsl(6, 69%, 14%) |
| OKLCH | oklch(24.5% 0.069 29.6) |
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 #3B100B | 16.60:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #3B100B | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #3B100B text on white | 16.60:1 | AAA | Lc 103.1 | Preferred for body text |
| #3B100B 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
#F6CFC8
oklch(88.6% 0.045 29.9)
-
Step 300
300
#F1ADA2
oklch(80.9% 0.082 29.3)
-
Step 400
400
#E77F6F
oklch(70.8% 0.131 29.9)
-
Step 500
500
#DC5949
oklch(63.1% 0.168 29.5)
-
Step 600
600
#C8392B
oklch(55.7% 0.182 29.6)
-
Step 700
700
#AC291D
oklch(49.1% 0.169 29.7)
-
Step 800
800
#8C251B
oklch(42.8% 0.14 29.6)
-
Step 900
900
#70241C
oklch(37.6% 0.109 29.2)
-
Step 950
950 (this color)
#3B100B
oklch(24.5% 0.069 29.6)
#3B100B 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) | #1C180A | 0.072 |
| Deuteranopia (no green cones) | #26220A | 0.067 |
| Tritanopia (no blue cones) | #42060F | 0.025 |
| Achromatopsia (no color) | #1E1E1E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B100B
#3B100B
oklch(24.5% 0.069 29.6)
- #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 #3B100B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.026
- Dark Maroon #3C0008 ΔE 0.031
- Chocolate Brown #411900 ΔE 0.035
- Mahogany #4A0100 ΔE 0.038
- Dark Brown #341C02 ΔE 0.041
- Dark Plum #3F012C ΔE 0.073
- Jet #212529 ΔE 0.079
- Aubergine #3D0734 ΔE 0.081
Use #3B100B 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.