#3B356F
Closest named color: Dark Slate Blue (#483D8B). oklch(36.7% 0.097 285.3), rgb(59, 53, 111).
Aa
White text reads best on this color (10.91:1).
About this color
#3B356F is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.097 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 10.91:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.92:1 |
| White text | 10.91:1 |
Values
| HEX | #3B356F |
| RGB | rgb(59, 53, 111) |
| HSL | hsl(246, 35%, 32%) |
| OKLCH | oklch(36.7% 0.097 285.3) |
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 #3B356F | 10.91:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #3B356F | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #3B356F text on white | 10.91:1 | AAA | Lc 95.1 | Preferred for body text |
| #3B356F text on black | 1.92:1 | Fails | Lc -7.5 | 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
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D6D6F3
oklch(88.5% 0.04 285.6)
-
Step 300
300
#BBBBEE
oklch(80.9% 0.072 284.7)
-
Step 400
400
#9A96E6
oklch(70.8% 0.116 285.3)
-
Step 500
500
#8279DE
oklch(63% 0.148 285.4)
-
Step 600
600
#6D60CC
oklch(55.6% 0.161 285.4)
-
Step 700
700
#5B4FB1
oklch(49.2% 0.15 285)
-
Step 800
800
#4A418F
oklch(42.7% 0.124 285.1)
-
Step 900
900 (this color)
#3B356F
oklch(36.7% 0.097 285.3)
-
Step 950
950
#242143
oklch(27% 0.062 285.5)
#3B356F 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) | #1C3E71 | 0.045 |
| Deuteranopia (no green cones) | #1A3B6E | 0.045 |
| Tritanopia (no blue cones) | #2B414C | 0.082 |
| Achromatopsia (no color) | #3D3D3D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B356F
#3B356F
oklch(36.7% 0.097 285.3)
- #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 #3B356F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Twilight Blue #0A437A ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.062
- Marine Blue #01386A ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.072
- Blueberry #464196 ΔE 0.073
- Cobalt #1E488F ΔE 0.074
- Marine #042E60 ΔE 0.077
Use #3B356F 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.