#210A05
Closest named color: Very Dark Brown (#1D0200). oklch(18.1% 0.042 35.7), rgb(33, 10, 5).
Aa
White text reads best on this color (18.91:1).
About this color
#210A05 is a very dark, muted red. In OKLCH its lightness is 18%, its chroma 0.042 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.032 away. White text reads best on it, at 18.91:1.
| Hue family | Reds |
| Lightness | very dark (18%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.11:1 |
| White text | 18.91:1 |
Values
| HEX | #210A05 |
| RGB | rgb(33, 10, 5) |
| HSL | hsl(11, 74%, 7%) |
| OKLCH | oklch(18.1% 0.042 35.7) |
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 #210A05 | 18.91:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #210A05 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #210A05 text on white | 18.91:1 | AAA | Lc 105.2 | Preferred for body text |
| #210A05 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EAD3CD
oklch(88.4% 0.027 35)
-
Step 300
300
#DEB6AB
oklch(80.9% 0.049 35.9)
-
Step 400
400
#CD8F7F
oklch(70.7% 0.08 35)
-
Step 500
500
#BE725E
oklch(63% 0.101 35.6)
-
Step 600
600
#A95A45
oklch(55.6% 0.109 35.8)
-
Step 700
700
#914936
oklch(49.1% 0.102 35.8)
-
Step 800
800
#763C2D
oklch(42.6% 0.085 35.5)
-
Step 900
900
#5F3429
oklch(37.6% 0.065 35.2)
-
Step 950
950 (this color)
#210A05
oklch(18.1% 0.042 35.7)
#210A05 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) | #100E05 | 0.041 |
| Deuteranopia (no green cones) | #161305 | 0.038 |
| Tritanopia (no blue cones) | #250609 | 0.019 |
| Achromatopsia (no color) | #111111 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210A05
#210A05
oklch(18.1% 0.042 35.7)
- #00151B
#00151B
oklch(18.1% 0.032 217.3)
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 #210A05, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.032
- Almost Black #070D0D ΔE 0.059
- Dark Maroon #3C0008 ΔE 0.068
- Rich Navy #001219 ΔE 0.074
- Dark Brown #341C02 ΔE 0.077
- Deep Brown #410200 ΔE 0.078
- Rich Black #0D1B2A ΔE 0.082
- Chocolate Brown #411900 ΔE 0.094
Use #210A05 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.