#15102D
Closest named color: Rich Black (#0D1B2A). oklch(19.8% 0.056 288.1), rgb(21, 16, 45).
Aa
White text reads best on this color (18.35:1).
About this color
#15102D is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.056 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.040 away. White text reads best on it, at 18.35:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.35:1 |
Values
| HEX | #15102D |
| RGB | rgb(21, 16, 45) |
| HSL | hsl(250, 48%, 12%) |
| OKLCH | oklch(19.8% 0.056 288.1) |
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 #15102D | 18.35:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #15102D | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #15102D text on white | 18.35:1 | AAA | Lc 104.9 | Preferred for body text |
| #15102D text on black | 1.14:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BEBAEA
oklch(80.8% 0.067 288.6)
-
Step 400
400
#9D96DF
oklch(70.7% 0.106 287.8)
-
Step 500
500
#877AD6
oklch(63.1% 0.136 288.4)
-
Step 600
600
#7161C3
oklch(55.5% 0.147 288.1)
-
Step 700
700
#5F50A9
oklch(49.1% 0.137 288)
-
Step 800
800
#4D4289
oklch(42.7% 0.114 287.7)
-
Step 900
900
#40386D
oklch(37.6% 0.088 288.3)
-
Step 950
950 (this color)
#15102D
oklch(19.8% 0.056 288.1)
#15102D 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) | #04152E | 0.030 |
| Deuteranopia (no green cones) | #04142C | 0.030 |
| Tritanopia (no blue cones) | #0E161C | 0.046 |
| Achromatopsia (no color) | #141414 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15102D
#15102D
oklch(19.8% 0.056 288.1)
- #181700
#181700
oklch(19.9% 0.043 107.6)
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 #15102D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Midnight Purple #280137 ΔE 0.057
- Navy Blue #001146 ΔE 0.058
- Rich Navy #001219 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.059
- Dark Navy #000435 ΔE 0.063
- Midnight #03012D ΔE 0.068
- Dark #1B2431 ΔE 0.070
Use #15102D 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.