#28172E
Closest named color: Dark (#1B2431). oklch(23.8% 0.049 316.9), rgb(40, 23, 46).
Aa
White text reads best on this color (16.77:1).
About this color
#28172E is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.049 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.046 away. White text reads best on it, at 16.77:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.25:1 |
| White text | 16.77:1 |
Values
| HEX | #28172E |
| RGB | rgb(40, 23, 46) |
| HSL | hsl(284, 33%, 14%) |
| OKLCH | oklch(23.8% 0.049 316.9) |
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 #28172E | 16.77:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #28172E | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #28172E text on white | 16.77:1 | AAA | Lc 103.6 | Preferred for body text |
| #28172E text on black | 1.25:1 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E2D3E7
oklch(88.5% 0.031 317.7)
-
Step 300
300
#D0B6DA
oklch(81% 0.057 316.6)
-
Step 400
400
#B88FC7
oklch(70.8% 0.092 316.8)
-
Step 500
500
#A672B8
oklch(63.1% 0.117 317.1)
-
Step 600
600
#9159A4
oklch(55.6% 0.127 317.1)
-
Step 700
700
#7B498D
oklch(49.1% 0.118 316.6)
-
Step 800
800
#643C72
oklch(42.7% 0.098 316.9)
-
Step 900
900
#52345C
oklch(37.8% 0.076 317.4)
-
Step 950
950 (this color)
#28172E
oklch(23.8% 0.049 316.9)
#28172E 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) | #131C2F | 0.041 |
| Deuteranopia (no green cones) | #181E2D | 0.037 |
| Tritanopia (no blue cones) | #281A20 | 0.032 |
| Achromatopsia (no color) | #1D1D1D | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28172E
#28172E
oklch(23.8% 0.049 316.9)
- #13240C
#13240C
oklch(23.8% 0.049 137.3)
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 #28172E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.046
- Eggplant #380835 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.051
- Jet #212529 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.052
- Dark Purple #35063E ΔE 0.057
- Aubergine #3D0734 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.058
Use #28172E 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.