#180B30
Closest named color: Midnight Purple (#280137). oklch(19.4% 0.07 295.2), rgb(24, 11, 48).
Aa
White text reads best on this color (18.59:1).
About this color
#180B30 is a very dark, moderately saturated purple. In OKLCH its lightness is 19%, its chroma 0.070 and its hue 295°. 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 18.59:1.
| 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 | 18.59:1 |
Values
| HEX | #180B30 |
| RGB | rgb(24, 11, 48) |
| HSL | hsl(261, 63%, 12%) |
| OKLCH | oklch(19.4% 0.07 295.2) |
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 #180B30 | 18.59:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #180B30 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #180B30 text on white | 18.59:1 | AAA | Lc 105.0 | Preferred for body text |
| #180B30 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
#DBD4F5
oklch(88.6% 0.046 295.2)
-
Step 300
300
#C4B6F1
oklch(80.8% 0.083 295.4)
-
Step 400
400
#A78EEA
oklch(70.6% 0.133 295.3)
-
Step 500
500
#936FE3
oklch(63% 0.17 295.4)
-
Step 600
600
#7E54D1
oklch(55.5% 0.185 295.2)
-
Step 700
700
#6B44B5
oklch(49.1% 0.171 295.3)
-
Step 800
800
#573993
oklch(42.8% 0.142 295.1)
-
Step 900
900
#473275
oklch(37.7% 0.111 295)
-
Step 950
950 (this color)
#180B30
oklch(19.4% 0.07 295.2)
#180B30 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) | #001331 | 0.046 |
| Deuteranopia (no green cones) | #00122F | 0.046 |
| Tritanopia (no blue cones) | #12141C | 0.055 |
| Achromatopsia (no color) | #131313 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180B30
#180B30
oklch(19.4% 0.07 295.2)
- #141700
#141700
oklch(19.5% 0.044 115.9)
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 #180B30, 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 0.056
- Navy Blue #001146 ΔE 0.060
- Dark Navy #000435 ΔE 0.061
- Midnight #03012D ΔE 0.064
- Night Blue #040348 ΔE 0.066
- Dark Navy Blue #00022E ΔE 0.069
Use #180B30 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.