#2A151B
Closest named color: Jet (#212529). oklch(22.7% 0.035 1.9), rgb(42, 21, 27).
Aa
White text reads best on this color (17.19:1).
About this color
#2A151B is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.035 and its hue 2°. 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 17.19:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.22:1 |
| White text | 17.19:1 |
Values
| HEX | #2A151B |
| RGB | rgb(42, 21, 27) |
| HSL | hsl(343, 33%, 12%) |
| OKLCH | oklch(22.7% 0.035 1.9) |
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 #2A151B | 17.19:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #2A151B | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #2A151B text on white | 17.19:1 | AAA | Lc 104.0 | Preferred for body text |
| #2A151B 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
#F1E7E9
oklch(93.6% 0.011 3.5)
-
Step 200
200
#E7D3D8
oklch(88.5% 0.023 0.6)
-
Step 300
300
#D9B6BE
oklch(80.9% 0.042 2.7)
-
Step 400
400
#C58F9D
oklch(70.6% 0.068 1.9)
-
Step 500
500
#B57385
oklch(63.1% 0.086 2.1)
-
Step 600
600
#A05B6F
oklch(55.6% 0.093 1.9)
-
Step 700
700
#894B5D
oklch(49.2% 0.086 2.1)
-
Step 800
800
#6F3D4C
oklch(42.6% 0.072 1.4)
-
Step 900
900
#5A353F
oklch(37.7% 0.055 2.5)
-
Step 950
950 (this color)
#2A151B
oklch(22.7% 0.035 1.9)
#2A151B 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 | 0.039 |
| Deuteranopia (no green cones) | #1D1D1B | 0.037 |
| Tritanopia (no blue cones) | #2D1417 | 0.009 |
| Achromatopsia (no color) | #1B1B1B | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A151B
#2A151B
oklch(22.7% 0.035 1.9)
- #05221D
#05221D
oklch(22.8% 0.036 179.6)
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 #2A151B, 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 0.056
- Dark Maroon #3C0008 ΔE 0.058
- Dark #1B2431 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.059
- Deep Brown #410200 ΔE 0.066
- Chocolate Brown #411900 ΔE 0.069
- Eggplant #380835 ΔE 0.070
Use #2A151B 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.