#180827
Closest named color: Midnight Purple (#280137). oklch(18% 0.062 304.7), rgb(24, 8, 39).
Aa
White text reads best on this color (19.04:1).
About this color
#180827 is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.062 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.050 away. White text reads best on it, at 19.04:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.10:1 |
| White text | 19.04:1 |
Values
| HEX | #180827 |
| RGB | rgb(24, 8, 39) |
| HSL | hsl(271, 66%, 9%) |
| OKLCH | oklch(18% 0.062 304.7) |
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 #180827 | 19.04:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #180827 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #180827 text on white | 19.04:1 | AAA | Lc 105.3 | Preferred for body text |
| #180827 text on black | 1.10:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3EF
oklch(88.5% 0.04 304.9)
-
Step 300
300
#CBB5E7
oklch(80.8% 0.073 304.8)
-
Step 400
400
#B18DDC
oklch(70.6% 0.118 304.5)
-
Step 500
500
#9F6FD2
oklch(63.2% 0.151 304.9)
-
Step 600
600
#8A55BF
oklch(55.7% 0.163 304.7)
-
Step 700
700
#7544A5
oklch(49.1% 0.153 304.7)
-
Step 800
800
#5F3985
oklch(42.7% 0.125 304.7)
-
Step 900
900
#4E326B
oklch(37.8% 0.098 304.8)
-
Step 950
950 (this color)
#180827
oklch(18% 0.062 304.7)
#180827 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) | #000F28 | 0.051 |
| Deuteranopia (no green cones) | #031026 | 0.046 |
| Tritanopia (no blue cones) | #150E16 | 0.044 |
| Achromatopsia (no color) | #101010 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180827
#180827
oklch(18% 0.062 304.7)
- #0D1500
#0D1500
oklch(18.1% 0.046 125.4)
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 #180827, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.051
- Rich Black #0D1B2A ΔE 0.063
- Midnight #03012D ΔE 0.063
- Dark Navy #000435 ΔE 0.066
- Rich Navy #001219 ΔE 0.067
- Dark Navy Blue #00022E ΔE 0.069
- Almost Black #070D0D ΔE 0.071
Use #180827 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.