#28183A
Closest named color: Dark Purple (#35063E). oklch(24.8% 0.065 303.8), rgb(40, 24, 58).
Aa
White text reads best on this color (16.38:1).
About this color
#28183A is a very dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.065 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.047 away. White text reads best on it, at 16.38:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | muted (0.065) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.28:1 |
| White text | 16.38:1 |
Values
| HEX | #28183A |
| RGB | rgb(40, 24, 58) |
| HSL | hsl(268, 41%, 16%) |
| OKLCH | oklch(24.8% 0.065 303.8) |
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 #28183A | 16.38:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #28183A | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #28183A text on white | 16.38:1 | AAA | Lc 103.2 | Preferred for body text |
| #28183A 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CBB5E9
oklch(80.9% 0.076 304)
-
Step 400
400
#B18DDF
oklch(70.8% 0.122 303.6)
-
Step 500
500
#9E6ED5
oklch(63.1% 0.156 303.8)
-
Step 600
600
#8953C3
oklch(55.5% 0.171 303.6)
-
Step 700
700
#7543A8
oklch(49.1% 0.158 304)
-
Step 800
800
#5F3888
oklch(42.7% 0.131 303.9)
-
Step 900
900
#4D316D
oklch(37.6% 0.102 303.4)
-
Step 950
950 (this color)
#28183A
oklch(24.8% 0.065 303.8)
#28183A 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) | #0D1F3B | 0.048 |
| Deuteranopia (no green cones) | #122039 | 0.044 |
| Tritanopia (no blue cones) | #251E26 | 0.048 |
| Achromatopsia (no color) | #202020 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28183A
#28183A
oklch(24.8% 0.065 303.8)
- #1B2600
#1B2600
oklch(24.9% 0.062 124.4)
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 #28183A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.047
- Oxford Blue #1B263B ΔE 0.048
- Eggplant #380835 ΔE 0.048
- Dark #1B2431 ΔE 0.051
- Midnight Purple #280137 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.055
- Deep Purple #36013F ΔE 0.056
- Aubergine #3D0734 ΔE 0.056
Use #28183A 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.