#180A2F
Closest named color: Midnight Purple (#280137). oklch(19.1% 0.07 296.5), rgb(24, 10, 47).
Aa
White text reads best on this color (18.69:1).
About this color
#180A2F is a very dark, moderately saturated purple. In OKLCH its lightness is 19%, its chroma 0.070 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.044 away. White text reads best on it, at 18.69:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.12:1 |
| White text | 18.69:1 |
Values
| HEX | #180A2F |
| RGB | rgb(24, 10, 47) |
| HSL | hsl(263, 65%, 11%) |
| OKLCH | oklch(19.1% 0.07 296.5) |
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 #180A2F | 18.69:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #180A2F | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #180A2F text on white | 18.69:1 | AAA | Lc 105.0 | Preferred for body text |
| #180A2F 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DCD3F5
oklch(88.5% 0.047 297.5)
-
Step 300
300
#C5B6F1
oklch(80.9% 0.084 296.1)
-
Step 400
400
#A98EE9
oklch(70.7% 0.132 296.5)
-
Step 500
500
#956FE3
oklch(63.2% 0.17 296.3)
-
Step 600
600
#8153D0
oklch(55.6% 0.185 296.9)
-
Step 700
700
#6D43B4
oklch(49.1% 0.171 296.7)
-
Step 800
800
#583892
oklch(42.7% 0.142 296.2)
-
Step 900
900
#483174
oklch(37.5% 0.111 296.5)
-
Step 950
950 (this color)
#180A2F
oklch(19.1% 0.07 296.5)
#180A2F 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) | #001230 | 0.047 |
| Deuteranopia (no green cones) | #00122E | 0.047 |
| Tritanopia (no blue cones) | #12131B | 0.055 |
| Achromatopsia (no color) | #121212 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180A2F
#180A2F
oklch(19.1% 0.07 296.5)
- #131600
#131600
oklch(19% 0.044 116)
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 #180A2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.044
- Very Dark Purple #2A0134 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.058
- Dark Navy #000435 ΔE 0.061
- Navy Blue #001146 ΔE 0.062
- Midnight #03012D ΔE 0.063
- Night Blue #040348 ΔE 0.067
- Dark Navy Blue #00022E ΔE 0.068
Use #180A2F 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.