#181225
Closest named color: Rich Black (#0D1B2A). oklch(20% 0.038 297.4), rgb(24, 18, 37).
Aa
White text reads best on this color (18.22:1).
About this color
#181225 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.038 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.034 away. White text reads best on it, at 18.22:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.15:1 |
| White text | 18.22:1 |
Values
| HEX | #181225 |
| RGB | rgb(24, 18, 37) |
| HSL | hsl(259, 35%, 11%) |
| OKLCH | oklch(20% 0.038 297.4) |
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 #181225 | 18.22:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #181225 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #181225 text on white | 18.22:1 | AAA | Lc 104.9 | Preferred for body text |
| #181225 text on black | 1.15:1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EAE8F2
oklch(93.5% 0.014 295.3)
-
Step 200
200
#DBD6E8
oklch(88.5% 0.025 298.6)
-
Step 300
300
#C3BBDB
oklch(80.9% 0.045 296.8)
-
Step 400
400
#A597C8
oklch(70.6% 0.072 297.6)
-
Step 500
500
#907DBA
oklch(63.1% 0.092 298)
-
Step 600
600
#7A66A6
oklch(55.6% 0.099 297.5)
-
Step 700
700
#67548F
oklch(49.1% 0.094 297.7)
-
Step 800
800
#544574
oklch(42.7% 0.078 297.7)
-
Step 900
900
#453A5D
oklch(37.6% 0.06 297.9)
-
Step 950
950 (this color)
#181225
oklch(20% 0.038 297.4)
#181225 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) | #0D1526 | 0.021 |
| Deuteranopia (no green cones) | #0E1525 | 0.020 |
| Tritanopia (no blue cones) | #151519 | 0.030 |
| Achromatopsia (no color) | #151515 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #181225
#181225
oklch(20% 0.038 297.4)
- #151804
#151804
oklch(20% 0.037 116.5)
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 #181225, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.034
- Rich Navy #001219 ΔE 0.053
- Dark #1B2431 ΔE 0.063
- Almost Black #070D0D ΔE 0.063
- Very Dark Purple #2A0134 ΔE 0.066
- Midnight Purple #280137 ΔE 0.066
- Jet #212529 ΔE 0.070
- Oxford Blue #1B263B ΔE 0.073
Use #181225 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.