#38317B
Closest named color: Dark Slate Blue (#483D8B). oklch(36.5% 0.121 282.9), rgb(56, 49, 123).
Aa
White text reads best on this color (11.09:1).
About this color
#38317B is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.121 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 11.09:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.09:1 |
Values
| HEX | #38317B |
| RGB | rgb(56, 49, 123) |
| HSL | hsl(246, 43%, 34%) |
| OKLCH | oklch(36.5% 0.121 282.9) |
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 #38317B | 11.09:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #38317B | 1.89:1 | Fails | Lc 8.6 | Not readable |
| #38317B text on white | 11.09:1 | AAA | Lc 95.3 | Preferred for body text |
| #38317B text on black | 1.89:1 | Fails | Lc -7.3 | 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 900.
-
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
#D4D6FA
oklch(88.6% 0.049 282.8)
-
Step 300
300
#B8BAFA
oklch(81% 0.09 282.8)
-
Step 400
400
#9593F8
oklch(70.8% 0.145 282.9)
-
Step 500
500
#7D74F4
oklch(63.1% 0.186 282.9)
-
Step 600
600
#6858E3
oklch(55.5% 0.203 282.8)
-
Step 700
700
#5747C5
oklch(49% 0.188 282.7)
-
Step 800
800
#473CA0
oklch(42.8% 0.156 282.6)
-
Step 900
900 (this color)
#38317B
oklch(36.5% 0.121 282.9)
-
Step 950
950
#221F4A
oklch(26.9% 0.077 283)
#38317B 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) | #003E7D | 0.059 |
| Deuteranopia (no green cones) | #003979 | 0.057 |
| Tritanopia (no blue cones) | #1C4251 | 0.103 |
| Achromatopsia (no color) | #3C3C3C | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #38317B
#38317B
oklch(36.5% 0.121 282.9)
- #464000
#464000
oklch(36.6% 0.077 103.5)
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 #38317B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Twilight Blue #0A437A ΔE 0.063
- Blueberry #464196 ΔE 0.065
- Marine Blue #01386A ΔE 0.067
- Cobalt #1E488F ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.077
- Indigo #4B0082 ΔE 0.080
- Marine #042E60 ΔE 0.080
Use #38317B 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.