#210818
Closest named color: Very Dark Brown (#1D0200). oklch(18.4% 0.05 343.7), rgb(33, 8, 24).
Aa
White text reads best on this color (18.87:1).
About this color
#210818 is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.050 and its hue 344°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.056 away. White text reads best on it, at 18.87:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.050) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.11:1 |
| White text | 18.87:1 |
Values
| HEX | #210818 |
| RGB | rgb(33, 8, 24) |
| HSL | hsl(322, 61%, 8%) |
| OKLCH | oklch(18.4% 0.05 343.7) |
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 #210818 | 18.87:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #210818 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #210818 text on white | 18.87:1 | AAA | Lc 105.2 | Preferred for body text |
| #210818 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
#FAF3F7
oklch(97.1% 0.009 341.8)
-
Step 100
100
#F3E6ED
oklch(93.7% 0.017 343.6)
-
Step 200
200
#EAD1DF
oklch(88.5% 0.033 343)
-
Step 300
300
#DDB2CA
oklch(80.9% 0.059 343.9)
-
Step 400
400
#CB89AF
oklch(70.8% 0.094 344.3)
-
Step 500
500
#BB6A9C
oklch(63.1% 0.12 343.3)
-
Step 600
600
#A65086
oklch(55.5% 0.131 343.7)
-
Step 700
700
#8F4072
oklch(49.1% 0.123 343.8)
-
Step 800
800
#74365D
oklch(42.8% 0.101 343.6)
-
Step 900
900
#5E2F4C
oklch(37.7% 0.079 343.7)
-
Step 950
950 (this color)
#210818
oklch(18.4% 0.05 343.7)
#210818 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) | #0A0E19 | 0.053 |
| Deuteranopia (no green cones) | #111317 | 0.049 |
| Tritanopia (no blue cones) | #24080E | 0.022 |
| Achromatopsia (no color) | #111111 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210818
#210818
oklch(18.4% 0.05 343.7)
- #00180E
#00180E
oklch(18.5% 0.039 164.3)
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 #210818, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.056
- Very Dark Purple #2A0134 ΔE 0.063
- Almost Black #070D0D ΔE 0.067
- Midnight Purple #280137 ΔE 0.067
- Rich Black #0D1B2A ΔE 0.071
- Dark Maroon #3C0008 ΔE 0.072
- Rich Navy #001219 ΔE 0.073
- Eggplant #380835 ΔE 0.078
Use #210818 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.