#171530
Closest named color: Rich Black (#0D1B2A). oklch(21.4% 0.052 284.5), rgb(23, 21, 48).
Aa
White text reads best on this color (17.70:1).
About this color
#171530 is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.052 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.030 away. White text reads best on it, at 17.70:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.70:1 |
Values
| HEX | #171530 |
| RGB | rgb(23, 21, 48) |
| HSL | hsl(244, 39%, 14%) |
| OKLCH | oklch(21.4% 0.052 284.5) |
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 #171530 | 17.70:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #171530 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #171530 text on white | 17.70:1 | AAA | Lc 104.4 | Preferred for body text |
| #171530 text on black | 1.18:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D7F0
oklch(88.6% 0.034 283.9)
-
Step 300
300
#BBBCE8
oklch(80.9% 0.062 283.9)
-
Step 400
400
#9998DC
oklch(70.7% 0.099 284.3)
-
Step 500
500
#827DD2
oklch(63.1% 0.126 284.9)
-
Step 600
600
#6C65BF
oklch(55.6% 0.136 284.6)
-
Step 700
700
#5A53A5
oklch(49% 0.128 284.5)
-
Step 800
800
#4A4586
oklch(42.8% 0.105 284.5)
-
Step 900
900
#3D3A6B
oklch(37.6% 0.082 284.5)
-
Step 950
950 (this color)
#171530
oklch(21.4% 0.052 284.5)
#171530 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) | #0A1931 | 0.023 |
| Deuteranopia (no green cones) | #09172F | 0.023 |
| Tritanopia (no blue cones) | #0F1B20 | 0.045 |
| Achromatopsia (no color) | #181818 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171530
#171530
oklch(21.4% 0.052 284.5)
- #1D1A00
#1D1A00
oklch(21.4% 0.045 103.7)
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 #171530, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.030
- Dark #1B2431 ΔE 0.053
- Navy Blue #001146 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.058
- Midnight Purple #280137 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.063
- Rich Navy #001219 ΔE 0.065
- Jet #212529 ΔE 0.065
Use #171530 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.