#100717
Closest named color: Almost Black (#070D0D). oklch(15.2% 0.036 309), rgb(16, 7, 23).
Aa
White text reads best on this color (19.72:1).
About this color
#100717 is a very dark, muted purple. In OKLCH its lightness is 15%, its chroma 0.036 and its hue 309°. 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 19.72:1.
| Hue family | Purples |
| Lightness | very dark (15%) |
| Chroma | muted (0.036) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.72:1 |
Values
| HEX | #100717 |
| RGB | rgb(16, 7, 23) |
| HSL | hsl(274, 53%, 6%) |
| OKLCH | oklch(15.2% 0.036 309) |
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 #100717 | 19.72:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #100717 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #100717 text on white | 19.72:1 | AAA | Lc 105.8 | Preferred for body text |
| #100717 text on black | 1.06:1 | 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
#F6F4F8
oklch(97% 0.006 308.4)
-
Step 100
100
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DED5E5
oklch(88.5% 0.024 310.7)
-
Step 300
300
#C9BAD6
oklch(81% 0.042 309.4)
-
Step 400
400
#AD95C2
oklch(70.7% 0.07 308.8)
-
Step 500
500
#997BB2
oklch(63.2% 0.087 308.9)
-
Step 600
600
#84639E
oklch(55.6% 0.096 309.2)
-
Step 700
700
#6F5287
oklch(49.1% 0.089 308.6)
-
Step 800
800
#5B436D
oklch(42.6% 0.073 309.8)
-
Step 900
900
#4A3959
oklch(37.7% 0.057 308.2)
-
Step 950
950 (this color)
#100717
oklch(15.2% 0.036 309)
#100717 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) | #040A18 | 0.028 |
| Deuteranopia (no green cones) | #060B17 | 0.026 |
| Tritanopia (no blue cones) | #0F090D | 0.026 |
| Achromatopsia (no color) | #0B0B0B | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100717
#100717
oklch(15.2% 0.036 309)
- #070E01
#070E01
oklch(15.1% 0.035 128.7)
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 #100717, 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 0.049
- Very Dark Brown #1D0200 ΔE 0.062
- Midnight #03012D ΔE 0.064
- Dark Navy Blue #00022E ΔE 0.070
- Rich Black #0D1B2A ΔE 0.074
- Dark Navy #000435 ΔE 0.075
- Very Dark Blue #000133 ΔE 0.077
Use #100717 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.