#17153B
Closest named color: Navy Blue (#001146). oklch(22.4% 0.071 281.3), rgb(23, 21, 59).
Aa
White text reads best on this color (17.40:1).
About this color
#17153B is a very dark, moderately saturated purple. In OKLCH its lightness is 22%, its chroma 0.071 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.044 away. White text reads best on it, at 17.40:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.20:1 |
| White text | 17.40:1 |
Values
| HEX | #17153B |
| RGB | rgb(23, 21, 59) |
| HSL | hsl(243, 48%, 16%) |
| OKLCH | oklch(22.4% 0.071 281.3) |
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 #17153B | 17.40:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #17153B | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #17153B text on white | 17.40:1 | AAA | Lc 104.1 | Preferred for body text |
| #17153B 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D3D6F8
oklch(88.5% 0.047 281.4)
-
Step 300
300
#B7BBF6
oklch(81% 0.083 281.3)
-
Step 400
400
#9395F2
oklch(70.7% 0.135 281.4)
-
Step 500
500
#7A78ED
oklch(63.1% 0.171 281.1)
-
Step 600
600
#655DDC
oklch(55.6% 0.188 281.2)
-
Step 700
700
#554CBF
oklch(49.2% 0.174 281.4)
-
Step 800
800
#453F9A
oklch(42.7% 0.144 281.4)
-
Step 900
900
#39377B
oklch(37.8% 0.112 280.9)
-
Step 950
950 (this color)
#17153B
oklch(22.4% 0.071 281.3)
#17153B 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) | #011B3C | 0.032 |
| Deuteranopia (no green cones) | #00193A | 0.033 |
| Tritanopia (no blue cones) | #081E25 | 0.062 |
| Achromatopsia (no color) | #1A1A1A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17153B
#17153B
oklch(22.4% 0.071 281.3)
- #201C00
#201C00
oklch(22.4% 0.047 102)
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 #17153B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.044
- Dark Indigo #1F0954 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.057
- Midnight Purple #280137 ΔE 0.058
- Dark #1B2431 ΔE 0.058
- Very Dark Purple #2A0134 ΔE 0.062
- Night Blue #040348 ΔE 0.063
Use #17153B 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.