#171245
Closest named color: Dark Indigo (#1F0954). oklch(22.7% 0.092 280.6), rgb(23, 18, 69).
Aa
White text reads best on this color (17.37:1).
About this color
#171245 is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, its chroma 0.092 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.034 away. White text reads best on it, at 17.37:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.20:1 |
| White text | 17.37:1 |
Values
| HEX | #171245 |
| RGB | rgb(23, 18, 69) |
| HSL | hsl(246, 59%, 17%) |
| OKLCH | oklch(22.7% 0.092 280.6) |
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 #171245 | 17.37:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #171245 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #171245 text on white | 17.37:1 | AAA | Lc 103.9 | Preferred for body text |
| #171245 text on black | 1.20:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FF
oklch(93.6% 0.031 279.9)
-
Step 200
200
#D1D6FF
oklch(88.5% 0.057 279.7)
-
Step 300
300
#B4BAFF
oklch(80.9% 0.098 280.1)
-
Step 400
400
#9093FF
oklch(70.8% 0.156 280.4)
-
Step 500
500
#7872FF
oklch(63.1% 0.203 280.8)
-
Step 600
600
#644FF9
oklch(55.6% 0.24 280.8)
-
Step 700
700
#533DD9
oklch(49% 0.224 280.6)
-
Step 800
800
#4435B0
oklch(42.8% 0.186 280.7)
-
Step 900
900
#38308B
oklch(37.7% 0.145 280.8)
-
Step 950
950 (this color)
#171245
oklch(22.7% 0.092 280.6)
#171245 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) | #001C47 | 0.037 |
| Deuteranopia (no green cones) | #001844 | 0.033 |
| Tritanopia (no blue cones) | #001F29 | 0.078 |
| Achromatopsia (no color) | #1A1A1A | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171245
#171245
oklch(22.7% 0.092 280.6)
- #211C00
#211C00
oklch(22.5% 0.047 100)
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 #171245, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.034
- Navy Blue #001146 ΔE 0.036
- Night Blue #040348 ΔE 0.052
- Midnight Purple #280137 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.064
- Very Dark Purple #2A0134 ΔE 0.065
- Darkblue #030764 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.068
Use #171245 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.