#180B34
Closest named color: Midnight Purple (#280137). oklch(19.8% 0.076 292.6), rgb(24, 11, 52).
Aa
White text reads best on this color (18.48:1).
About this color
#180B34 is a very dark, moderately saturated purple. In OKLCH its lightness is 20%, its chroma 0.076 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.043 away. White text reads best on it, at 18.48:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.13:1 |
| White text | 18.48:1 |
Values
| HEX | #180B34 |
| RGB | rgb(24, 11, 52) |
| HSL | hsl(259, 65%, 12%) |
| OKLCH | oklch(19.8% 0.076 292.6) |
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 #180B34 | 18.48:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #180B34 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #180B34 text on white | 18.48:1 | AAA | Lc 104.9 | Preferred for body text |
| #180B34 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C2B6F6
oklch(80.9% 0.09 292.9)
-
Step 400
400
#A48EF2
oklch(70.7% 0.144 292.4)
-
Step 500
500
#906EED
oklch(63.2% 0.184 292.7)
-
Step 600
600
#7B51DB
oklch(55.5% 0.201 292.7)
-
Step 700
700
#6841BE
oklch(49.1% 0.186 292.6)
-
Step 800
800
#55379A
oklch(42.8% 0.154 292.7)
-
Step 900
900
#45317B
oklch(37.7% 0.121 292.1)
-
Step 950
950 (this color)
#180B34
oklch(19.8% 0.076 292.6)
#180B34 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) | #001435 | 0.045 |
| Deuteranopia (no green cones) | #001333 | 0.045 |
| Tritanopia (no blue cones) | #10151E | 0.060 |
| Achromatopsia (no color) | #141414 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180B34
#180B34
oklch(19.8% 0.076 292.6)
- #161700
#161700
oklch(19.7% 0.044 111.9)
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 #180B34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.043
- Very Dark Purple #2A0134 ΔE 0.047
- Navy Blue #001146 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.058
- Dark Navy #000435 ΔE 0.060
- Night Blue #040348 ΔE 0.060
- Dark Indigo #1F0954 ΔE 0.062
- Midnight #03012D ΔE 0.065
Use #180B34 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.