#2A101B
Closest named color: Dark Maroon (#3C0008). oklch(21.7% 0.046 354.9), rgb(42, 16, 27).
Aa
White text reads best on this color (17.67:1).
About this color
#2A101B is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.046 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.054 away. White text reads best on it, at 17.67:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.67:1 |
Values
| HEX | #2A101B |
| RGB | rgb(42, 16, 27) |
| HSL | hsl(335, 45%, 11%) |
| OKLCH | oklch(21.7% 0.046 354.9) |
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 #2A101B | 17.67:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #2A101B | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #2A101B text on white | 17.67:1 | AAA | Lc 104.3 | Preferred for body text |
| #2A101B text on black | 1.18:1 | 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
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F3E6EA
oklch(93.6% 0.015 356.6)
-
Step 200
200
#EBD1DA
oklch(88.5% 0.031 354.8)
-
Step 300
300
#DEB3C2
oklch(80.9% 0.053 355.5)
-
Step 400
400
#CC8AA3
oklch(70.7% 0.086 355.1)
-
Step 500
500
#BE6C8D
oklch(63.2% 0.111 355.2)
-
Step 600
600
#A95277
oklch(55.6% 0.121 355)
-
Step 700
700
#904264
oklch(49% 0.112 354.7)
-
Step 800
800
#753752
oklch(42.7% 0.093 354.3)
-
Step 900
900
#5F3044
oklch(37.7% 0.073 354.2)
-
Step 950
950 (this color)
#2A101B
oklch(21.7% 0.046 354.9)
#2A101B 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) | #13161B | 0.051 |
| Deuteranopia (no green cones) | #1A1A1A | 0.046 |
| Tritanopia (no blue cones) | #2D0F14 | 0.015 |
| Achromatopsia (no color) | #181818 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A101B
#2A101B
oklch(21.7% 0.046 354.9)
- #002019
#002019
oklch(21.7% 0.041 175.3)
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 #2A101B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.054
- Eggplant #380835 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.064
- Dark Plum #3F012C ΔE 0.065
- Deep Brown #410200 ΔE 0.066
- Jet #212529 ΔE 0.067
- Very Dark Purple #2A0134 ΔE 0.068
- Aubergine #3D0734 ΔE 0.068
Use #2A101B 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.