#17102F
Closest named color: Rich Black (#0D1B2A). oklch(20.2% 0.059 290.5), rgb(23, 16, 47).
Aa
White text reads best on this color (18.23:1).
About this color
#17102F is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.059 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.042 away. White text reads best on it, at 18.23:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.15:1 |
| White text | 18.23:1 |
Values
| HEX | #17102F |
| RGB | rgb(23, 16, 47) |
| HSL | hsl(254, 49%, 12%) |
| OKLCH | oklch(20.2% 0.059 290.5) |
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 #17102F | 18.23:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #17102F | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #17102F text on white | 18.23:1 | AAA | Lc 104.8 | Preferred for body text |
| #17102F text on black | 1.15:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F2
oklch(88.4% 0.04 290.3)
-
Step 300
300
#C0B9EC
oklch(80.9% 0.072 291)
-
Step 400
400
#A094E2
oklch(70.7% 0.113 290.3)
-
Step 500
500
#8A77D9
oklch(63% 0.144 290.6)
-
Step 600
600
#755EC7
oklch(55.6% 0.157 290.4)
-
Step 700
700
#624DAC
oklch(49.1% 0.146 290.2)
-
Step 800
800
#50408B
oklch(42.7% 0.12 290.2)
-
Step 900
900
#42376F
oklch(37.7% 0.093 290.2)
-
Step 950
950 (this color)
#17102F
oklch(20.2% 0.059 290.5)
#17102F 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) | #031630 | 0.035 |
| Deuteranopia (no green cones) | #04142E | 0.033 |
| Tritanopia (no blue cones) | #10171D | 0.050 |
| Achromatopsia (no color) | #151515 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17102F
#17102F
oklch(20.2% 0.059 290.5)
- #181800
#181800
oklch(20.2% 0.044 109.8)
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 #17102F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.042
- Midnight Purple #280137 ΔE 0.053
- Very Dark Purple #2A0134 ΔE 0.055
- Navy Blue #001146 ΔE 0.057
- Rich Navy #001219 ΔE 0.065
- Dark Navy #000435 ΔE 0.065
- Dark #1B2431 ΔE 0.068
- Night Blue #040348 ΔE 0.070
Use #17102F 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.