#2A100D
Closest named color: Dark Maroon (#3C0008). oklch(21.2% 0.044 28.1), rgb(42, 16, 13).
Aa
White text reads best on this color (17.82:1).
About this color
#2A100D is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.044 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.049 away. White text reads best on it, at 17.82:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.17:1 |
| White text | 17.82:1 |
Values
| HEX | #2A100D |
| RGB | rgb(42, 16, 13) |
| HSL | hsl(6, 53%, 11%) |
| OKLCH | oklch(21.2% 0.044 28.1) |
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 #2A100D | 17.82:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #2A100D | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #2A100D text on white | 17.82:1 | AAA | Lc 104.4 | Preferred for body text |
| #2A100D text on black | 1.17:1 | 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
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F4E6E4
oklch(93.5% 0.016 27.3)
-
Step 200
200
#ECD2CF
oklch(88.4% 0.029 25.6)
-
Step 300
300
#E1B5AE
oklch(81% 0.052 28.7)
-
Step 400
400
#D08D83
oklch(70.8% 0.084 28.7)
-
Step 500
500
#C26F65
oklch(63.2% 0.107 27.8)
-
Step 600
600
#AD564C
oklch(55.7% 0.116 28.1)
-
Step 700
700
#94463D
oklch(49.2% 0.107 28.3)
-
Step 800
800
#783A32
oklch(42.7% 0.088 28.9)
-
Step 900
900
#61322C
oklch(37.6% 0.069 28.4)
-
Step 950
950 (this color)
#2A100D
oklch(21.2% 0.044 28.1)
#2A100D 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) | #16140D | 0.046 |
| Deuteranopia (no green cones) | #1D1A0C | 0.043 |
| Tritanopia (no blue cones) | #2F0C0F | 0.016 |
| Achromatopsia (no color) | #181818 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A100D
#2A100D
oklch(21.2% 0.044 28.1)
- #001D22
#001D22
oklch(21.2% 0.037 210.5)
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 #2A100D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.049
- Dark Brown #341C02 ΔE 0.052
- Deep Brown #410200 ΔE 0.057
- Very Dark Brown #1D0200 ΔE 0.062
- Chocolate Brown #411900 ΔE 0.067
- Jet #212529 ΔE 0.072
- Rich Black #0D1B2A ΔE 0.074
- Mahogany #4A0100 ΔE 0.076
Use #2A100D 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.