#100819
Closest named color: Almost Black (#070D0D). oklch(15.6% 0.037 304.4), rgb(16, 8, 25).
Aa
White text reads best on this color (19.61:1).
About this color
#100819 is a very dark, muted purple. In OKLCH its lightness is 16%, its chroma 0.037 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.041 away. White text reads best on it, at 19.61:1.
| Hue family | Purples |
| Lightness | very dark (16%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.61:1 |
Values
| HEX | #100819 |
| RGB | rgb(16, 8, 25) |
| HSL | hsl(268, 52%, 6%) |
| OKLCH | oklch(15.6% 0.037 304.4) |
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 #100819 | 19.61:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #100819 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #100819 text on white | 19.61:1 | AAA | Lc 105.7 | Preferred for body text |
| #100819 text on black | 1.07:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F1
oklch(93.7% 0.013 306)
-
Step 200
200
#DCD5E6
oklch(88.4% 0.024 304.5)
-
Step 300
300
#C7BAD8
oklch(80.9% 0.044 305)
-
Step 400
400
#AA96C4
oklch(70.7% 0.069 304.5)
-
Step 500
500
#957CB5
oklch(63.1% 0.088 304.1)
-
Step 600
600
#8064A1
oklch(55.5% 0.097 304.5)
-
Step 700
700
#6C538A
oklch(49.1% 0.09 304.2)
-
Step 800
800
#584470
oklch(42.7% 0.075 304.3)
-
Step 900
900
#483A5B
oklch(37.8% 0.058 303.2)
-
Step 950
950 (this color)
#100819
oklch(15.6% 0.037 304.4)
#100819 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) | #040B1A | 0.027 |
| Deuteranopia (no green cones) | #060C19 | 0.025 |
| Tritanopia (no blue cones) | #0E0B0F | 0.028 |
| Achromatopsia (no color) | #0C0C0C | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100819
#100819
oklch(15.6% 0.037 304.4)
- #090F00
#090F00
oklch(15.6% 0.039 124.2)
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 #100819, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.041
- Rich Navy #001219 ΔE 0.047
- Midnight #03012D ΔE 0.062
- Very Dark Brown #1D0200 ΔE 0.065
- Dark Navy Blue #00022E ΔE 0.067
- Rich Black #0D1B2A ΔE 0.069
- Dark Navy #000435 ΔE 0.072
- Very Dark Blue #000133 ΔE 0.075
Use #100819 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.