#372980
Closest named color: Dark Slate Blue (#483D8B). oklch(35.4% 0.14 284), rgb(55, 41, 128).
Aa
White text reads best on this color (11.72:1).
About this color
#372980 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.140 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.062 away. White text reads best on it, at 11.72:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.79:1 |
| White text | 11.72:1 |
Values
| HEX | #372980 |
| RGB | rgb(55, 41, 128) |
| HSL | hsl(250, 51%, 33%) |
| OKLCH | oklch(35.4% 0.14 284) |
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 #372980 | 11.72:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #372980 | 1.79:1 | Fails | Lc 7.5 | Not readable |
| #372980 text on white | 11.72:1 | AAA | Lc 96.4 | Preferred for body text |
| #372980 text on black | 1.79:1 | 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 900.
-
Step 50
50
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FE
oklch(93.7% 0.03 283.7)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9690FF
oklch(70.7% 0.159 284)
-
Step 500
500
#7F6FFF
oklch(63.1% 0.206 283.8)
-
Step 600
600
#6C4EF3
oklch(55.6% 0.233 284.2)
-
Step 700
700
#5B3DD3
oklch(49.1% 0.216 284.3)
-
Step 800
800
#4934AB
oklch(42.6% 0.18 283.8)
-
Step 900
900 (this color)
#372980
oklch(35.4% 0.14 284)
-
Step 950
950
#231D4F
oklch(27% 0.088 284.2)
#372980 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) | #003B83 | 0.064 |
| Deuteranopia (no green cones) | #00357E | 0.060 |
| Tritanopia (no blue cones) | #153F50 | 0.118 |
| Achromatopsia (no color) | #383838 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #372980
#372980
oklch(35.4% 0.14 284)
- #423D00
#423D00
oklch(35.4% 0.075 104.4)
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 #372980, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.062
- Indigo #4B0082 ΔE 0.064
- Midnight Blue #191970 ΔE 0.072
- Blueberry #464196 ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.077
- Marine Blue #01386A ΔE 0.077
- Twilight Blue #0A437A ΔE 0.078
- Royal Purple #4B006E ΔE 0.078
Use #372980 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.