#25182C
Closest named color: Dark (#1B2431). oklch(23.5% 0.042 313.2), rgb(37, 24, 44).
Aa
White text reads best on this color (16.85:1).
About this color
#25182C is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.042 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.041 away. White text reads best on it, at 16.85:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.24:1 |
| White text | 16.85:1 |
Values
| HEX | #25182C |
| RGB | rgb(37, 24, 44) |
| HSL | hsl(279, 29%, 13%) |
| OKLCH | oklch(23.5% 0.042 313.2) |
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 #25182C | 16.85:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #25182C | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #25182C text on white | 16.85:1 | AAA | Lc 103.7 | Preferred for body text |
| #25182C text on black | 1.24:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#E0D4E6
oklch(88.5% 0.028 314.7)
-
Step 300
300
#CCB8D8
oklch(80.9% 0.049 312.9)
-
Step 400
400
#B292C4
oklch(70.6% 0.08 313.2)
-
Step 500
500
#9F77B5
oklch(63.1% 0.101 313.1)
-
Step 600
600
#8A5FA0
oklch(55.6% 0.109 313.6)
-
Step 700
700
#754E89
oklch(49.1% 0.101 313.5)
-
Step 800
800
#5F406F
oklch(42.6% 0.084 313.5)
-
Step 900
900
#4E375A
oklch(37.8% 0.065 313.5)
-
Step 950
950 (this color)
#25182C
oklch(23.5% 0.042 313.2)
#25182C 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) | #151C2D | 0.032 |
| Deuteranopia (no green cones) | #181D2B | 0.029 |
| Tritanopia (no blue cones) | #241B1F | 0.030 |
| Achromatopsia (no color) | #1D1D1D | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25182C
#25182C
oklch(23.5% 0.042 313.2)
- #16220D
#16220D
oklch(23.4% 0.041 133.1)
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 #25182C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.041
- Rich Black #0D1B2A ΔE 0.044
- Jet #212529 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.049
- Eggplant #380835 ΔE 0.058
- Very Dark Purple #2A0134 ΔE 0.063
- Dark Purple #35063E ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
Use #25182C 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.