#15103A
Closest named color: Navy Blue (#001146). oklch(21% 0.078 282.8), rgb(21, 16, 58).
Aa
White text reads best on this color (17.99:1).
About this color
#15103A is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.078 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.040 away. White text reads best on it, at 17.99:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 17.99:1 |
Values
| HEX | #15103A |
| RGB | rgb(21, 16, 58) |
| HSL | hsl(247, 57%, 15%) |
| OKLCH | oklch(21% 0.078 282.8) |
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 #15103A | 17.99:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #15103A | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #15103A text on white | 17.99:1 | AAA | Lc 104.5 | Preferred for body text |
| #15103A text on black | 1.16:1 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D3D6FB
oklch(88.6% 0.051 281.6)
-
Step 300
300
#B7B9FB
oklch(80.8% 0.093 282.8)
-
Step 400
400
#9493F9
oklch(70.8% 0.147 282.4)
-
Step 500
500
#7D74F6
oklch(63.2% 0.188 282.7)
-
Step 600
600
#6858E5
oklch(55.6% 0.205 282.6)
-
Step 700
700
#5747C7
oklch(49.2% 0.19 282.5)
-
Step 800
800
#473BA1
oklch(42.7% 0.158 282.7)
-
Step 900
900
#3B347F
oklch(37.7% 0.122 283)
-
Step 950
950 (this color)
#15103A
oklch(21% 0.078 282.8)
#15103A 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) | #00183B | 0.035 |
| Deuteranopia (no green cones) | #001539 | 0.033 |
| Tritanopia (no blue cones) | #051A23 | 0.065 |
| Achromatopsia (no color) | #171717 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15103A
#15103A
oklch(21% 0.078 282.8)
- #1C1900
#1C1900
oklch(21% 0.044 103.5)
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 #15103A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.040
- Rich Black #0D1B2A ΔE 0.052
- Night Blue #040348 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.053
- Midnight Purple #280137 ΔE 0.053
- Very Dark Purple #2A0134 ΔE 0.058
- Dark Navy #000435 ΔE 0.060
- Midnight #03012D ΔE 0.071
Use #15103A 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.