#210A11
Closest named color: Very Dark Brown (#1D0200). oklch(18.5% 0.041 2.7), rgb(33, 10, 17).
Aa
White text reads best on this color (18.81:1).
About this color
#210A11 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.041 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.044 away. White text reads best on it, at 18.81:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.11:1 |
| White text | 18.81:1 |
Values
| HEX | #210A11 |
| RGB | rgb(33, 10, 17) |
| HSL | hsl(342, 53%, 8%) |
| OKLCH | oklch(18.5% 0.041 2.7) |
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 #210A11 | 18.81:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #210A11 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #210A11 text on white | 18.81:1 | AAA | Lc 105.2 | Preferred for body text |
| #210A11 text on black | 1.11:1 | 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
#F3E6E9
oklch(93.6% 0.015 1.6)
-
Step 200
200
#EAD2D7
oklch(88.5% 0.027 3.5)
-
Step 300
300
#DDB4BE
oklch(80.9% 0.049 1.9)
-
Step 400
400
#CA8D9C
oklch(70.8% 0.076 3.1)
-
Step 500
500
#BB6F84
oklch(63.1% 0.099 2.5)
-
Step 600
600
#A6566E
oklch(55.6% 0.108 2.1)
-
Step 700
700
#8E465B
oklch(49% 0.1 2.9)
-
Step 800
800
#733A4B
oklch(42.6% 0.082 2.2)
-
Step 900
900
#5E323E
oklch(37.7% 0.065 3.2)
-
Step 950
950 (this color)
#210A11
oklch(18.5% 0.041 2.7)
#210A11 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) | #0E0F11 | 0.045 |
| Deuteranopia (no green cones) | #141310 | 0.041 |
| Tritanopia (no blue cones) | #24080D | 0.010 |
| Achromatopsia (no color) | #111111 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210A11
#210A11
oklch(18.5% 0.041 2.7)
- #001714
#001714
oklch(18.4% 0.033 183.9)
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 #210A11, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.044
- Almost Black #070D0D ΔE 0.060
- Dark Maroon #3C0008 ΔE 0.067
- Rich Navy #001219 ΔE 0.070
- Rich Black #0D1B2A ΔE 0.071
- Very Dark Purple #2A0134 ΔE 0.079
- Deep Brown #410200 ΔE 0.081
- Midnight Purple #280137 ΔE 0.083
Use #210A11 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.