#180F2C
Closest named color: Rich Black (#0D1B2A). oklch(19.8% 0.056 295.1), rgb(24, 15, 44).
Aa
White text reads best on this color (18.36:1).
About this color
#180F2C is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.056 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 18.36:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.36:1 |
Values
| HEX | #180F2C |
| RGB | rgb(24, 15, 44) |
| HSL | hsl(259, 49%, 12%) |
| OKLCH | oklch(19.8% 0.056 295.1) |
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 #180F2C | 18.36:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #180F2C | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #180F2C text on white | 18.36:1 | AAA | Lc 104.9 | Preferred for body text |
| #180F2C text on black | 1.14:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C3B9E8
oklch(81% 0.066 294.6)
-
Step 400
400
#A593DC
oklch(70.7% 0.106 294.9)
-
Step 500
500
#9077D3
oklch(63.2% 0.136 294.7)
-
Step 600
600
#7B5DC0
oklch(55.5% 0.149 295.1)
-
Step 700
700
#684CA5
oklch(49% 0.138 295.3)
-
Step 800
800
#553F86
oklch(42.7% 0.115 295.4)
-
Step 900
900
#46366B
oklch(37.7% 0.089 295.7)
-
Step 950
950 (this color)
#180F2C
oklch(19.8% 0.056 295.1)
#180F2C 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) | #04152D | 0.037 |
| Deuteranopia (no green cones) | #06142B | 0.034 |
| Tritanopia (no blue cones) | #13151B | 0.045 |
| Achromatopsia (no color) | #141414 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180F2C
#180F2C
oklch(19.8% 0.056 295.1)
- #151800
#151800
oklch(19.9% 0.045 115.7)
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 #180F2C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Midnight Purple #280137 ΔE 0.052
- Very Dark Purple #2A0134 ΔE 0.054
- Rich Navy #001219 ΔE 0.063
- Navy Blue #001146 ΔE 0.064
- Dark Navy #000435 ΔE 0.068
- Dark #1B2431 ΔE 0.071
- Midnight #03012D ΔE 0.071
Use #180F2C 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.