#170C19
Closest named color: Almost Black (#070D0D). oklch(17.6% 0.031 321.2), rgb(23, 12, 25).
Aa
White text reads best on this color (19.03:1).
About this color
#170C19 is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.031 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.045 away. White text reads best on it, at 19.03:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.10:1 |
| White text | 19.03:1 |
Values
| HEX | #170C19 |
| RGB | rgb(23, 12, 25) |
| HSL | hsl(291, 35%, 7%) |
| OKLCH | oklch(17.6% 0.031 321.2) |
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 #170C19 | 19.03:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #170C19 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #170C19 text on white | 19.03:1 | AAA | Lc 105.4 | Preferred for body text |
| #170C19 text on black | 1.10:1 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EDE8EE
oklch(93.7% 0.01 320.5)
-
Step 200
200
#E0D5E1
oklch(88.5% 0.02 323.2)
-
Step 300
300
#CCB9CF
oklch(80.8% 0.037 321.6)
-
Step 400
400
#B295B7
oklch(70.7% 0.059 321.3)
-
Step 500
500
#9F7BA5
oklch(63.2% 0.074 321.6)
-
Step 600
600
#896390
oklch(55.5% 0.081 321.1)
-
Step 700
700
#75527B
oklch(49.2% 0.076 321.5)
-
Step 800
800
#5F4364
oklch(42.7% 0.064 321.3)
-
Step 900
900
#4E3951
oklch(37.7% 0.048 322.2)
-
Step 950
950 (this color)
#170C19
oklch(17.6% 0.031 321.2)
#170C19 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) | #0A0F19 | 0.028 |
| Deuteranopia (no green cones) | #0D1019 | 0.024 |
| Tritanopia (no blue cones) | #170D11 | 0.018 |
| Achromatopsia (no color) | #101010 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170C19
#170C19
oklch(17.6% 0.031 321.2)
- #091407
#091407
oklch(17.6% 0.031 140.2)
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 #170C19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.045
- Rich Navy #001219 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.056
- Very Dark Brown #1D0200 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.076
- Midnight Purple #280137 ΔE 0.077
- Midnight #03012D ΔE 0.080
- Dark Navy Blue #00022E ΔE 0.084
Use #170C19 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.