#10091B
Closest named color: Almost Black (#070D0D). oklch(16% 0.038 300.2), rgb(16, 9, 27).
Aa
White text reads best on this color (19.49:1).
About this color
#10091B is a very dark, muted purple. In OKLCH its lightness is 16%, its chroma 0.038 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.042 away. White text reads best on it, at 19.49:1.
| Hue family | Purples |
| Lightness | very dark (16%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.49:1 |
Values
| HEX | #10091B |
| RGB | rgb(16, 9, 27) |
| HSL | hsl(263, 50%, 7%) |
| OKLCH | oklch(16% 0.038 300.2) |
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 #10091B | 19.49:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #10091B | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #10091B text on white | 19.49:1 | AAA | Lc 105.7 | Preferred for body text |
| #10091B 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F1
oklch(93.6% 0.012 301.3)
-
Step 200
200
#DBD6E8
oklch(88.5% 0.025 298.6)
-
Step 300
300
#C5BBDA
oklch(81% 0.044 300.1)
-
Step 400
400
#A797C7
oklch(70.7% 0.071 299.9)
-
Step 500
500
#927DB9
oklch(63.2% 0.091 299.9)
-
Step 600
600
#7D65A5
oklch(55.6% 0.1 300.5)
-
Step 700
700
#69548D
oklch(49.1% 0.092 300)
-
Step 800
800
#564573
oklch(42.8% 0.077 300.2)
-
Step 900
900
#473A5D
oklch(37.8% 0.06 300.6)
-
Step 950
950 (this color)
#10091B
oklch(16% 0.038 300.2)
#10091B 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) | #050C1C | 0.024 |
| Deuteranopia (no green cones) | #060C1B | 0.022 |
| Tritanopia (no blue cones) | #0E0C10 | 0.029 |
| Achromatopsia (no color) | #0C0C0C | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10091B
#10091B
oklch(16% 0.038 300.2)
- #0B1000
#0B1000
oklch(16.2% 0.039 121.7)
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 #10091B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.042
- Rich Navy #001219 ΔE 0.045
- Midnight #03012D ΔE 0.061
- Rich Black #0D1B2A ΔE 0.065
- Dark Navy Blue #00022E ΔE 0.065
- Dark Navy #000435 ΔE 0.069
- Very Dark Brown #1D0200 ΔE 0.069
- Very Dark Blue #000133 ΔE 0.072
Use #10091B 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.