#171025
Closest named color: Rich Black (#0D1B2A). oklch(19.4% 0.042 297.7), rgb(23, 16, 37).
Aa
White text reads best on this color (18.46:1).
About this color
#171025 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.042 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.039 away. White text reads best on it, at 18.46:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.46:1 |
Values
| HEX | #171025 |
| RGB | rgb(23, 16, 37) |
| HSL | hsl(260, 40%, 10%) |
| OKLCH | oklch(19.4% 0.042 297.7) |
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 #171025 | 18.46:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #171025 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #171025 text on white | 18.46:1 | AAA | Lc 105.0 | Preferred for body text |
| #171025 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DBD6EA
oklch(88.6% 0.028 297.3)
-
Step 300
300
#C4BADD
oklch(80.8% 0.05 298.3)
-
Step 400
400
#A696CC
oklch(70.6% 0.079 297.9)
-
Step 500
500
#917CBF
oklch(63.2% 0.101 297.9)
-
Step 600
600
#7B64AC
oklch(55.6% 0.111 297.4)
-
Step 700
700
#685393
oklch(49.2% 0.102 297.7)
-
Step 800
800
#554477
oklch(42.7% 0.084 298.1)
-
Step 900
900
#463960
oklch(37.6% 0.067 298.5)
-
Step 950
950 (this color)
#171025
oklch(19.4% 0.042 297.7)
#171025 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) | #0A1426 | 0.026 |
| Deuteranopia (no green cones) | #0B1424 | 0.025 |
| Tritanopia (no blue cones) | #141418 | 0.034 |
| Achromatopsia (no color) | #141414 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171025
#171025
oklch(19.4% 0.042 297.7)
- #131701
#131701
oklch(19.4% 0.043 118.1)
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 #171025, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.039
- Rich Navy #001219 ΔE 0.052
- Almost Black #070D0D ΔE 0.061
- Very Dark Purple #2A0134 ΔE 0.063
- Midnight Purple #280137 ΔE 0.064
- Dark #1B2431 ΔE 0.070
- Dark Navy #000435 ΔE 0.073
- Navy Blue #001146 ΔE 0.074
Use #171025 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.