#210F09
Closest named color: Very Dark Brown (#1D0200). oklch(19.3% 0.033 39.2), rgb(33, 15, 9).
Aa
White text reads best on this color (18.47:1).
About this color
#210F09 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.033 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.047 away. White text reads best on it, at 18.47:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.13:1 |
| White text | 18.47:1 |
Values
| HEX | #210F09 |
| RGB | rgb(33, 15, 9) |
| HSL | hsl(15, 57%, 8%) |
| OKLCH | oklch(19.3% 0.033 39.2) |
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 #210F09 | 18.47:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #210F09 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #210F09 text on white | 18.47:1 | AAA | Lc 105.0 | Preferred for body text |
| #210F09 text on black | 1.13:1 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F1E7E4
oklch(93.5% 0.012 37.4)
-
Step 200
200
#E7D5CF
oklch(88.6% 0.022 39.4)
-
Step 300
300
#D8B9AE
oklch(81% 0.039 40.5)
-
Step 400
400
#C49484
oklch(70.8% 0.063 39.2)
-
Step 500
500
#B47965
oklch(63.2% 0.08 39.5)
-
Step 600
600
#9F614C
oklch(55.6% 0.087 39.4)
-
Step 700
700
#88503D
oklch(49.2% 0.081 39.5)
-
Step 800
800
#6E4233
oklch(42.7% 0.066 39.6)
-
Step 900
900
#59382D
oklch(37.7% 0.051 39.2)
-
Step 950
950 (this color)
#210F09
oklch(19.3% 0.033 39.2)
#210F09 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) | #141109 | 0.030 |
| Deuteranopia (no green cones) | #181509 | 0.028 |
| Tritanopia (no blue cones) | #250C0D | 0.016 |
| Achromatopsia (no color) | #141414 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210F09
#210F09
oklch(19.3% 0.033 39.2)
- #01181F
#01181F
oklch(19.4% 0.034 219.8)
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 #210F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.047
- Almost Black #070D0D ΔE 0.059
- Dark Brown #341C02 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.068
- Rich Navy #001219 ΔE 0.069
- Rich Black #0D1B2A ΔE 0.070
- Deep Brown #410200 ΔE 0.077
- Jet #212529 ΔE 0.080
Use #210F09 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.