#2B151F
Closest named color: Jet (#212529). oklch(23.1% 0.039 351.9), rgb(43, 21, 31).
Aa
White text reads best on this color (17.07:1).
About this color
#2B151F is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.039 and its hue 352°. 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 17.07:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.22:1 |
| White text | 17.07:1 |
Values
| HEX | #2B151F |
| RGB | rgb(43, 21, 31) |
| HSL | hsl(333, 34%, 13%) |
| OKLCH | oklch(23.1% 0.039 351.9) |
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 #2B151F | 17.07:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #2B151F | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #2B151F text on white | 17.07:1 | AAA | Lc 103.9 | Preferred for body text |
| #2B151F 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F2E6EB
oklch(93.6% 0.015 350.1)
-
Step 200
200
#E8D3DB
oklch(88.6% 0.026 352.5)
-
Step 300
300
#D9B5C4
oklch(80.9% 0.046 351.2)
-
Step 400
400
#C58EA5
oklch(70.7% 0.073 352.3)
-
Step 500
500
#B67190
oklch(63.2% 0.095 351.7)
-
Step 600
600
#A1587A
oklch(55.6% 0.104 351.7)
-
Step 700
700
#894866
oklch(49% 0.096 352.1)
-
Step 800
800
#703C54
oklch(42.9% 0.079 351.9)
-
Step 900
900
#5B3345
oklch(37.7% 0.063 352.1)
-
Step 950
950 (this color)
#2B151F
oklch(23.1% 0.039 351.9)
#2B151F 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) | #17191F | 0.043 |
| Deuteranopia (no green cones) | #1D1D1E | 0.038 |
| Tritanopia (no blue cones) | #2E1419 | 0.013 |
| Achromatopsia (no color) | #1C1C1C | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B151F
#2B151F
oklch(23.1% 0.039 351.9)
- #05231B
#05231B
oklch(23.1% 0.039 172)
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 #2B151F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.053
- Dark #1B2431 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.059
- Dark Maroon #3C0008 ΔE 0.059
- Dark Brown #341C02 ΔE 0.061
- Eggplant #380835 ΔE 0.062
- Aubergine #3D0734 ΔE 0.066
- Dark Plum #3F012C ΔE 0.066
Use #2B151F 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.