#2B151B
Closest named color: Jet (#212529). oklch(22.9% 0.037 2.8), rgb(43, 21, 27).
Aa
White text reads best on this color (17.13:1).
About this color
#2B151B is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.037 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Jet (#212529), ΔE 0.053 away. White text reads best on it, at 17.13:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.22:1 |
| White text | 17.13:1 |
Values
| HEX | #2B151B |
| RGB | rgb(43, 21, 27) |
| HSL | hsl(344, 34%, 13%) |
| OKLCH | oklch(22.9% 0.037 2.8) |
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 #2B151B | 17.13:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #2B151B | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #2B151B text on white | 17.13:1 | AAA | Lc 103.9 | Preferred for body text |
| #2B151B text on black | 1.22:1 | 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
#F2E6E9
oklch(93.5% 0.014 0.3)
-
Step 200
200
#E8D3D7
oklch(88.5% 0.024 4.5)
-
Step 300
300
#DAB5BE
oklch(80.8% 0.044 1.8)
-
Step 400
400
#C78F9C
oklch(70.8% 0.07 3.7)
-
Step 500
500
#B77284
oklch(63.1% 0.09 3.1)
-
Step 600
600
#A25A6E
oklch(55.7% 0.097 2.9)
-
Step 700
700
#8A495C
oklch(49% 0.091 2.3)
-
Step 800
800
#713C4B
oklch(42.7% 0.076 2.7)
-
Step 900
900
#5B343F
oklch(37.7% 0.058 2)
-
Step 950
950 (this color)
#2B151B
oklch(22.9% 0.037 2.8)
#2B151B 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) | #18191B | 0.041 |
| Deuteranopia (no green cones) | #1E1D1B | 0.037 |
| Tritanopia (no blue cones) | #2E1317 | 0.010 |
| Achromatopsia (no color) | #1C1C1C | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B151B
#2B151B
oklch(22.9% 0.037 2.8)
- #04221E
#04221E
oklch(22.8% 0.036 182.7)
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 #2B151B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.053
- Dark Brown #341C02 ΔE 0.055
- Dark Maroon #3C0008 ΔE 0.057
- Dark #1B2431 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.061
- Deep Brown #410200 ΔE 0.065
- Chocolate Brown #411900 ΔE 0.067
- Eggplant #380835 ΔE 0.069
Use #2B151B 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.