#3B376A
Closest named color: Prussian Blue (#1D3557). oklch(36.7% 0.086 284.9), rgb(59, 55, 106).
Aa
White text reads best on this color (10.82:1).
About this color
#3B376A is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.086 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.057 away. White text reads best on it, at 10.82:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.94:1 |
| White text | 10.82:1 |
Values
| HEX | #3B376A |
| RGB | rgb(59, 55, 106) |
| HSL | hsl(245, 32%, 32%) |
| OKLCH | oklch(36.7% 0.086 284.9) |
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 #3B376A | 10.82:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #3B376A | 1.94:1 | Fails | Lc 9.0 | Not readable |
| #3B376A text on white | 10.82:1 | AAA | Lc 95.0 | Preferred for body text |
| #3B376A text on black | 1.94:1 | Fails | Lc -7.7 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F1
oklch(88.4% 0.037 285.6)
-
Step 300
300
#BCBBE9
oklch(80.8% 0.065 285.9)
-
Step 400
400
#9A97DE
oklch(70.6% 0.103 285.4)
-
Step 500
500
#827CD5
oklch(63% 0.132 285)
-
Step 600
600
#6C64C3
oklch(55.7% 0.143 284.5)
-
Step 700
700
#5B52A8
oklch(49.1% 0.133 285.1)
-
Step 800
800
#4A4488
oklch(42.8% 0.11 284.8)
-
Step 900
900 (this color)
#3B376A
oklch(36.7% 0.086 284.9)
-
Step 950
950
#242240
oklch(27% 0.055 285.1)
#3B376A 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) | #243F6C | 0.037 |
| Deuteranopia (no green cones) | #223C69 | 0.037 |
| Tritanopia (no blue cones) | #2D414B | 0.073 |
| Achromatopsia (no color) | #3D3D3D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B376A
#3B376A
oklch(36.7% 0.086 284.9)
- #454100
#454100
oklch(36.7% 0.078 105.7)
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 #3B376A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.061
- Marine Blue #01386A ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.070
- Charcoal #264653 ΔE 0.074
- Cobalt #1E488F ΔE 0.076
Use #3B376A 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.