#170D1B
Closest named color: Almost Black (#070D0D). oklch(18% 0.032 316), rgb(23, 13, 27).
Aa
White text reads best on this color (18.92:1).
About this color
#170D1B is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.032 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.047 away. White text reads best on it, at 18.92:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.10:1 |
| White text | 18.92:1 |
Values
| HEX | #170D1B |
| RGB | rgb(23, 13, 27) |
| HSL | hsl(283, 35%, 8%) |
| OKLCH | oklch(18% 0.032 316) |
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 #170D1B | 18.92:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #170D1B | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #170D1B text on white | 18.92:1 | AAA | Lc 105.3 | Preferred for body text |
| #170D1B 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EDE8EF
oklch(93.7% 0.011 316.5)
-
Step 200
200
#DFD5E3
oklch(88.5% 0.022 316.5)
-
Step 300
300
#CABAD1
oklch(80.9% 0.036 315.7)
-
Step 400
400
#B096BA
oklch(70.8% 0.059 316.6)
-
Step 500
500
#9C7BA9
oklch(63.1% 0.077 316.3)
-
Step 600
600
#866494
oklch(55.6% 0.082 315.8)
-
Step 700
700
#72537F
oklch(49.2% 0.078 315.6)
-
Step 800
800
#5D4467
oklch(42.8% 0.064 316)
-
Step 900
900
#4C3954
oklch(37.6% 0.051 315.7)
-
Step 950
950 (this color)
#170D1B
oklch(18% 0.032 316)
#170D1B 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) | #0B101C | 0.025 |
| Deuteranopia (no green cones) | #0D111B | 0.024 |
| Tritanopia (no blue cones) | #170F12 | 0.022 |
| Achromatopsia (no color) | #111111 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170D1B
#170D1B
oklch(18% 0.032 316)
- #0B1507
#0B1507
oklch(18.1% 0.031 136.8)
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 #170D1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.047
- Rich Navy #001219 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.052
- Very Dark Brown #1D0200 ΔE 0.064
- Very Dark Purple #2A0134 ΔE 0.074
- Midnight Purple #280137 ΔE 0.075
- Midnight #03012D ΔE 0.079
- Dark Navy #000435 ΔE 0.082
Use #170D1B 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.