#28173F
Closest named color: Dark Purple (#35063E). oklch(25% 0.074 300.8), rgb(40, 23, 63).
Aa
White text reads best on this color (16.34:1).
About this color
#28173F is a dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.074 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.043 away. White text reads best on it, at 16.34:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.28:1 |
| White text | 16.34:1 |
Values
| HEX | #28173F |
| RGB | rgb(40, 23, 63) |
| HSL | hsl(266, 47%, 17%) |
| OKLCH | oklch(25% 0.074 300.8) |
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 #28173F | 16.34:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #28173F | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #28173F text on white | 16.34:1 | AAA | Lc 103.1 | Preferred for body text |
| #28173F text on black | 1.28:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#ECE6F9
oklch(93.5% 0.026 300.3)
-
Step 200
200
#DED2F5
oklch(88.4% 0.049 301)
-
Step 300
300
#CAB4F1
oklch(80.9% 0.088 301)
-
Step 400
400
#AF8AEA
oklch(70.6% 0.141 300.6)
-
Step 500
500
#9D6AE3
oklch(63.2% 0.179 300.9)
-
Step 600
600
#884DD1
oklch(55.5% 0.195 300.7)
-
Step 700
700
#743DB5
oklch(49.1% 0.182 300.9)
-
Step 800
800
#5E3493
oklch(42.8% 0.15 300.5)
-
Step 900
900
#4D2E75
oklch(37.7% 0.118 301)
-
Step 950
950 (this color)
#28173F
oklch(25% 0.074 300.8)
#28173F 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) | #072040 | 0.055 |
| Deuteranopia (no green cones) | #0C1F3E | 0.050 |
| Tritanopia (no blue cones) | #231F28 | 0.056 |
| Achromatopsia (no color) | #202020 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28173F
#28173F
oklch(25% 0.074 300.8)
- #1E2600
#1E2600
oklch(25.2% 0.06 120.9)
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 #28173F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.043
- Eggplant #380835 ΔE 0.048
- Deep Purple #36013F ΔE 0.052
- Oxford Blue #1B263B ΔE 0.052
- Midnight Purple #280137 ΔE 0.053
- Very Dark Purple #2A0134 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.055
- Aubergine #3D0734 ΔE 0.057
Use #28173F 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.