#180A1B
Closest named color: Almost Black (#070D0D). oklch(17.5% 0.04 320.4), rgb(24, 10, 27).
Aa
White text reads best on this color (19.12:1).
About this color
#180A1B is a very dark, muted purple. In OKLCH its lightness is 17%, its chroma 0.040 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.051 away. White text reads best on it, at 19.12:1.
| Hue family | Purples |
| Lightness | very dark (17%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.09:1 |
| White text | 19.12:1 |
Values
| HEX | #180A1B |
| RGB | rgb(24, 10, 27) |
| HSL | hsl(289, 46%, 7%) |
| OKLCH | oklch(17.5% 0.04 320.4) |
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 #180A1B | 19.12:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #180A1B | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #180A1B text on white | 19.12:1 | AAA | Lc 105.4 | Preferred for body text |
| #180A1B text on black | 1.09:1 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7F0
oklch(93.6% 0.014 318.7)
-
Step 200
200
#E1D4E4
oklch(88.5% 0.026 319.9)
-
Step 300
300
#CFB7D4
oklch(80.9% 0.048 320.4)
-
Step 400
400
#B692BE
oklch(70.8% 0.075 320.1)
-
Step 500
500
#A476AD
oklch(63.1% 0.096 320.8)
-
Step 600
600
#8E5E99
oklch(55.6% 0.104 320)
-
Step 700
700
#794D83
oklch(49.1% 0.098 320)
-
Step 800
800
#63406A
oklch(42.8% 0.08 320.8)
-
Step 900
900
#503656
oklch(37.6% 0.063 319.9)
-
Step 950
950 (this color)
#180A1B
oklch(17.5% 0.04 320.4)
#180A1B 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) | #080E1C | 0.035 |
| Deuteranopia (no green cones) | #0B101A | 0.033 |
| Tritanopia (no blue cones) | #180C11 | 0.024 |
| Achromatopsia (no color) | #0F0F0F | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180A1B
#180A1B
oklch(17.5% 0.04 320.4)
- #061404
#061404
oklch(17.3% 0.04 140.3)
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 #180A1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.051
- Rich Navy #001219 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.061
- Very Dark Brown #1D0200 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.069
- Midnight Purple #280137 ΔE 0.071
- Midnight #03012D ΔE 0.076
- Dark Navy Blue #00022E ΔE 0.082
Use #180A1B 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.