#180E28
Closest named color: Rich Black (#0D1B2A). oklch(19.3% 0.052 299.3), rgb(24, 14, 40).
Aa
White text reads best on this color (18.54:1).
About this color
#180E28 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.052 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.046 away. White text reads best on it, at 18.54:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.54:1 |
Values
| HEX | #180E28 |
| RGB | rgb(24, 14, 40) |
| HSL | hsl(263, 48%, 11%) |
| OKLCH | oklch(19.3% 0.052 299.3) |
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 #180E28 | 18.54:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #180E28 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #180E28 text on white | 18.54:1 | AAA | Lc 105.0 | Preferred for body text |
| #180E28 text on black | 1.13:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F4
oklch(93.5% 0.018 300.1)
-
Step 200
200
#DCD5ED
oklch(88.6% 0.033 299)
-
Step 300
300
#C6B8E3
oklch(80.8% 0.062 299.9)
-
Step 400
400
#A993D5
oklch(70.7% 0.097 299.2)
-
Step 500
500
#9577CA
oklch(63.2% 0.125 299.5)
-
Step 600
600
#7F5EB7
oklch(55.6% 0.137 299)
-
Step 700
700
#6C4D9D
oklch(49.1% 0.126 299.6)
-
Step 800
800
#584080
oklch(42.8% 0.105 299.2)
-
Step 900
900
#483766
oklch(37.8% 0.08 299.2)
-
Step 950
950 (this color)
#180E28
oklch(19.3% 0.052 299.3)
#180E28 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) | #051329 | 0.036 |
| Deuteranopia (no green cones) | #081327 | 0.032 |
| Tritanopia (no blue cones) | #151319 | 0.039 |
| Achromatopsia (no color) | #131313 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180E28
#180E28
oklch(19.3% 0.052 299.3)
- #121700
#121700
oklch(19.2% 0.046 119.6)
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 #180E28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.046
- Midnight Purple #280137 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.056
- Rich Navy #001219 ΔE 0.059
- Almost Black #070D0D ΔE 0.068
- Dark Navy #000435 ΔE 0.069
- Navy Blue #001146 ΔE 0.070
- Midnight #03012D ΔE 0.071
Use #180E28 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.