#210905
Closest named color: Very Dark Brown (#1D0200). oklch(17.9% 0.043 33.3), rgb(33, 9, 5).
Aa
White text reads best on this color (18.98:1).
About this color
#210905 is a very dark, muted red. In OKLCH its lightness is 18%, its chroma 0.043 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.030 away. White text reads best on it, at 18.98:1.
| Hue family | Reds |
| Lightness | very dark (18%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.10:1 |
| White text | 18.98:1 |
Values
| HEX | #210905 |
| RGB | rgb(33, 9, 5) |
| HSL | hsl(9, 74%, 7%) |
| OKLCH | oklch(17.9% 0.043 33.3) |
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 #210905 | 18.98:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #210905 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #210905 text on white | 18.98:1 | AAA | Lc 105.2 | Preferred for body text |
| #210905 text on black | 1.10:1 | 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
#F3E7E4
oklch(93.7% 0.014 34.3)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#DFB5AC
oklch(80.8% 0.051 32.2)
-
Step 400
400
#CE8E80
oklch(70.7% 0.081 32.8)
-
Step 500
500
#C0715F
oklch(63.1% 0.104 33.7)
-
Step 600
600
#AB5846
oklch(55.6% 0.113 33.4)
-
Step 700
700
#934737
oklch(49.1% 0.106 33.2)
-
Step 800
800
#773B2E
oklch(42.6% 0.087 33.4)
-
Step 900
900
#603329
oklch(37.6% 0.068 33.5)
-
Step 950
950 (this color)
#210905
oklch(17.9% 0.043 33.3)
#210905 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) | #0F0D05 | 0.044 |
| Deuteranopia (no green cones) | #151205 | 0.039 |
| Tritanopia (no blue cones) | #250508 | 0.018 |
| Achromatopsia (no color) | #101010 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210905
#210905
oklch(17.9% 0.043 33.3)
- #00151A
#00151A
oklch(18% 0.032 213.8)
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 #210905, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.030
- Almost Black #070D0D ΔE 0.059
- Dark Maroon #3C0008 ΔE 0.068
- Rich Navy #001219 ΔE 0.075
- Deep Brown #410200 ΔE 0.078
- Dark Brown #341C02 ΔE 0.080
- Rich Black #0D1B2A ΔE 0.084
- Chocolate Brown #411900 ΔE 0.096
Use #210905 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.