#39366E
Closest named color: Twilight Blue (#0A437A). oklch(36.6% 0.094 283.1), rgb(57, 54, 110).
Aa
White text reads best on this color (10.89:1).
About this color
#39366E is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.094 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.057 away. White text reads best on it, at 10.89:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.92:1 |
| White text | 10.89:1 |
Values
| HEX | #39366E |
| RGB | rgb(57, 54, 110) |
| HSL | hsl(243, 34%, 32%) |
| OKLCH | oklch(36.6% 0.094 283.1) |
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 #39366E | 10.89:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #39366E | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #39366E text on white | 10.89:1 | AAA | Lc 95.1 | Preferred for body text |
| #39366E text on black | 1.92:1 | Fails | Lc -7.6 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D5D6F3
oklch(88.4% 0.04 284)
-
Step 300
300
#BABBED
oklch(80.8% 0.07 283.8)
-
Step 400
400
#9797E5
oklch(70.7% 0.113 283.1)
-
Step 500
500
#7F7BDD
oklch(63.1% 0.144 283.3)
-
Step 600
600
#6962CB
oklch(55.6% 0.158 283)
-
Step 700
700
#5851AF
oklch(49.1% 0.145 283)
-
Step 800
800
#48438E
oklch(42.8% 0.12 283.1)
-
Step 900
900 (this color)
#39366E
oklch(36.6% 0.094 283.1)
-
Step 950
950
#232242
oklch(27.1% 0.058 283.2)
#39366E 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) | #1E3F70 | 0.041 |
| Deuteranopia (no green cones) | #1B3B6D | 0.040 |
| Tritanopia (no blue cones) | #27424C | 0.082 |
| Achromatopsia (no color) | #3D3D3D | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39366E
#39366E
oklch(36.6% 0.094 283.1)
- #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 #39366E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.059
- Marine Blue #01386A ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.067
- Cobalt #1E488F ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.074
- Marine #042E60 ΔE 0.075
Use #39366E 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.