#301C63
Closest named color: Midnight Blue (#191970). oklch(29.9% 0.118 290.4), rgb(48, 28, 99).
Aa
White text reads best on this color (14.26:1).
About this color
#301C63 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.118 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.049 away. White text reads best on it, at 14.26:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.47:1 |
| White text | 14.26:1 |
Values
| HEX | #301C63 |
| RGB | rgb(48, 28, 99) |
| HSL | hsl(257, 56%, 25%) |
| OKLCH | oklch(29.9% 0.118 290.4) |
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 #301C63 | 14.26:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #301C63 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #301C63 text on white | 14.26:1 | AAA | Lc 100.6 | Preferred for body text |
| #301C63 text on black | 1.47:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FF
oklch(93.7% 0.032 289.6)
-
Step 200
200
#D8D3FF
oklch(88.5% 0.06 290.3)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8D67FF
oklch(63% 0.216 290.4)
-
Step 600
600
#7C38FF
oklch(55.5% 0.267 290.3)
-
Step 700
700
#6C00ED
oklch(49% 0.277 290.2)
-
Step 800
800
#5903C4
oklch(42.7% 0.239 290.5)
-
Step 900
900
#481A9A
oklch(37.7% 0.186 290.7)
-
Step 950
950 (this color)
#301C63
oklch(29.9% 0.118 290.4)
#301C63 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) | #002C65 | 0.065 |
| Deuteranopia (no green cones) | #002962 | 0.064 |
| Tritanopia (no blue cones) | #1F2E3D | 0.095 |
| Achromatopsia (no color) | #2A2A2A | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #301C63
#301C63
oklch(29.9% 0.118 290.4)
- #303000
#303000
oklch(29.9% 0.065 109.8)
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 #301C63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.061
- Royal Purple #4B006E ΔE 0.067
- Marine #042E60 ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.077
- Indigo #4B0082 ΔE 0.078
- Plum Purple #4E0550 ΔE 0.080
- Dark Purple #35063E ΔE 0.080
Use #301C63 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.