#2D171B
Closest named color: Dark Brown (#341C02). oklch(23.7% 0.036 8.4), rgb(45, 23, 27).
Aa
White text reads best on this color (16.80:1).
About this color
#2D171B is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.036 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.048 away. White text reads best on it, at 16.80:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.24:1 |
| White text | 16.80:1 |
Values
| HEX | #2D171B |
| RGB | rgb(45, 23, 27) |
| HSL | hsl(349, 32%, 13%) |
| OKLCH | oklch(23.7% 0.036 8.4) |
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 #2D171B | 16.80:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #2D171B | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #2D171B text on white | 16.80:1 | AAA | Lc 103.6 | Preferred for body text |
| #2D171B text on black | 1.24:1 | 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
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F2E7E8
oklch(93.7% 0.012 11)
-
Step 200
200
#E8D3D6
oklch(88.5% 0.024 7.8)
-
Step 300
300
#DAB6BB
oklch(80.9% 0.042 8.6)
-
Step 400
400
#C78F98
oklch(70.7% 0.069 8.3)
-
Step 500
500
#B7737F
oklch(63.1% 0.087 8.4)
-
Step 600
600
#A25B68
oklch(55.7% 0.094 8.8)
-
Step 700
700
#8B4A57
oklch(49.1% 0.089 8.1)
-
Step 800
800
#713D47
oklch(42.7% 0.074 8.3)
-
Step 900
900
#5B343B
oklch(37.5% 0.057 8.6)
-
Step 950
950 (this color)
#2D171B
oklch(23.7% 0.036 8.4)
#2D171B 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) | #1B1B1B | 0.039 |
| Deuteranopia (no green cones) | #201F1B | 0.036 |
| Tritanopia (no blue cones) | #311518 | 0.010 |
| Achromatopsia (no color) | #1D1D1D | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D171B
#2D171B
oklch(23.7% 0.036 8.4)
- #052422
#052422
oklch(23.7% 0.036 188.9)
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 #2D171B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.048
- Jet #212529 ΔE 0.049
- Dark #1B2431 ΔE 0.057
- Dark Maroon #3C0008 ΔE 0.057
- Chocolate Brown #411900 ΔE 0.060
- Deep Brown #410200 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.064
- Oxford Blue #1B263B ΔE 0.071
Use #2D171B 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.