#180E24
Closest named color: Rich Black (#0D1B2A). oklch(19% 0.045 303.4), rgb(24, 14, 36).
Aa
White text reads best on this color (18.63:1).
About this color
#180E24 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.045 and its hue 303°. 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 18.63:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.12:1 |
| White text | 18.63:1 |
Values
| HEX | #180E24 |
| RGB | rgb(24, 14, 36) |
| HSL | hsl(267, 44%, 10%) |
| OKLCH | oklch(19% 0.045 303.4) |
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 #180E24 | 18.63:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #180E24 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #180E24 text on white | 18.63:1 | AAA | Lc 105.1 | Preferred for body text |
| #180E24 text on black | 1.12:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F3
oklch(93.7% 0.015 302.5)
-
Step 200
200
#DDD5EA
oklch(88.6% 0.03 303)
-
Step 300
300
#C7B9DD
oklch(80.9% 0.052 302.9)
-
Step 400
400
#AB94CC
oklch(70.7% 0.084 303.1)
-
Step 500
500
#9778BF
oklch(63% 0.109 303.5)
-
Step 600
600
#8260AC
oklch(55.6% 0.119 303.4)
-
Step 700
700
#6E4F93
oklch(49.1% 0.11 303.6)
-
Step 800
800
#594177
oklch(42.6% 0.091 303.3)
-
Step 900
900
#493860
oklch(37.7% 0.069 302.8)
-
Step 950
950 (this color)
#180E24
oklch(19% 0.045 303.4)
#180E24 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) | #081225 | 0.031 |
| Deuteranopia (no green cones) | #0A1323 | 0.030 |
| Tritanopia (no blue cones) | #161217 | 0.034 |
| Achromatopsia (no color) | #131313 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180E24
#180E24
oklch(19% 0.045 303.4)
- #101701
#101701
oklch(19.1% 0.044 123.6)
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 #180E24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.046
- Rich Navy #001219 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.060
- Midnight Purple #280137 ΔE 0.061
- Almost Black #070D0D ΔE 0.062
- Midnight #03012D ΔE 0.073
- Dark Navy #000435 ΔE 0.074
- Dark #1B2431 ΔE 0.075
Use #180E24 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.