#170D2D
Closest named color: Rich Black (#0D1B2A). oklch(19.4% 0.062 294.3), rgb(23, 13, 45).
Aa
White text reads best on this color (18.55:1).
About this color
#170D2D is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.062 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.049 away. White text reads best on it, at 18.55:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.55:1 |
Values
| HEX | #170D2D |
| RGB | rgb(23, 13, 45) |
| HSL | hsl(259, 55%, 11%) |
| OKLCH | oklch(19.4% 0.062 294.3) |
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 #170D2D | 18.55:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #170D2D | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #170D2D text on white | 18.55:1 | AAA | Lc 105.0 | Preferred for body text |
| #170D2D text on black | 1.13:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD4F2
oklch(88.4% 0.041 294.7)
-
Step 300
300
#C3B8EC
oklch(80.9% 0.073 294.4)
-
Step 400
400
#A592E2
oklch(70.8% 0.116 294.1)
-
Step 500
500
#9074DA
oklch(63% 0.15 294.3)
-
Step 600
600
#7B5BC7
oklch(55.6% 0.162 294.2)
-
Step 700
700
#684AAC
oklch(49.1% 0.151 294.3)
-
Step 800
800
#553D8B
oklch(42.7% 0.125 294.7)
-
Step 900
900
#46356F
oklch(37.7% 0.097 294.8)
-
Step 950
950 (this color)
#170D2D
oklch(19.4% 0.062 294.3)
#170D2D 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) | #01132E | 0.040 |
| Deuteranopia (no green cones) | #02132C | 0.039 |
| Tritanopia (no blue cones) | #11141B | 0.049 |
| Achromatopsia (no color) | #131313 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170D2D
#170D2D
oklch(19.4% 0.062 294.3)
- #141700
#141700
oklch(19.5% 0.044 115.9)
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 #170D2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.049
- Midnight Purple #280137 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.052
- Navy Blue #001146 ΔE 0.062
- Dark Navy #000435 ΔE 0.062
- Rich Navy #001219 ΔE 0.065
- Midnight #03012D ΔE 0.065
- Dark Navy Blue #00022E ΔE 0.070
Use #170D2D 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.