#17091F
Closest named color: Almost Black (#070D0D). oklch(17.4% 0.047 311.8), rgb(23, 9, 31).
Aa
White text reads best on this color (19.17:1).
About this color
#17091F is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.047 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.057 away. White text reads best on it, at 19.17:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.09:1 |
| White text | 19.17:1 |
Values
| HEX | #17091F |
| RGB | rgb(23, 9, 31) |
| HSL | hsl(278, 55%, 8%) |
| OKLCH | oklch(17.4% 0.047 311.8) |
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 #17091F | 19.17:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #17091F | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #17091F text on white | 19.17:1 | AAA | Lc 105.4 | Preferred for body text |
| #17091F text on black | 1.09:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#E0D4E9
oklch(88.6% 0.031 311)
-
Step 300
300
#CDB7DC
oklch(81% 0.056 311.6)
-
Step 400
400
#B390CA
oklch(70.6% 0.091 311.5)
-
Step 500
500
#A174BC
oklch(63.1% 0.116 312.1)
-
Step 600
600
#8B5CA8
oklch(55.6% 0.124 311.4)
-
Step 700
700
#764B90
oklch(49.1% 0.116 311.5)
-
Step 800
800
#603E75
oklch(42.7% 0.096 311.4)
-
Step 900
900
#4F355E
oklch(37.7% 0.075 312.3)
-
Step 950
950 (this color)
#17091F
oklch(17.4% 0.047 311.8)
#17091F 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) | #050E20 | 0.039 |
| Deuteranopia (no green cones) | #080F1E | 0.035 |
| Tritanopia (no blue cones) | #160D12 | 0.034 |
| Achromatopsia (no color) | #0F0F0F | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17091F
#17091F
oklch(17.4% 0.047 311.8)
- #081400
#081400
oklch(17.3% 0.048 131.7)
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 #17091F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.057
- Rich Navy #001219 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.063
- Midnight Purple #280137 ΔE 0.064
- Midnight #03012D ΔE 0.069
- Very Dark Brown #1D0200 ΔE 0.071
- Dark Navy #000435 ΔE 0.074
Use #17091F 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.