#3B239D
Closest named color: Indigo Blue (#3A18B1). oklch(37.7% 0.183 282.2), rgb(59, 35, 157).
Aa
White text reads best on this color (10.97:1).
About this color
#3B239D is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.183 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Indigo Blue (#3A18B1), ΔE 0.034 away. White text reads best on it, at 10.97:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Indigo Blue (#3A18B1) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #3B239D |
| RGB | rgb(59, 35, 157) |
| HSL | hsl(252, 64%, 38%) |
| OKLCH | oklch(37.7% 0.183 282.2) |
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 #3B239D | 10.97:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #3B239D | 1.91:1 | Fails | Lc 9.5 | Not readable |
| #3B239D text on white | 10.97:1 | AAA | Lc 94.4 | Preferred for body text |
| #3B239D text on black | 1.91:1 | Fails | Lc -8.1 | 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
#F4F5FF
oklch(97.2% 0.013 281.6)
-
Step 100
100
#E6E8FF
oklch(93.6% 0.031 281.8)
-
Step 200
200
#D2D5FF
oklch(88.4% 0.058 281.9)
-
Step 300
300
#B6B9FF
oklch(80.9% 0.099 282.1)
-
Step 400
400
#9391FF
oklch(70.6% 0.158 282.4)
-
Step 500
500
#7B71FF
oklch(63.1% 0.204 282)
-
Step 600
600
#6849FF
oklch(55.7% 0.253 282.2)
-
Step 700
700
#5A14F7
oklch(49% 0.283 282.1)
-
Step 800
800
#491BC8
oklch(42.8% 0.235 282.2)
-
Step 900
900 (this color)
#3B239D
oklch(37.7% 0.183 282.2)
-
Step 950
950
#22175C
oklch(27% 0.116 282.6)
#3B239D 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) | #0040A0 | 0.074 |
| Deuteranopia (no green cones) | #00389B | 0.065 |
| Tritanopia (no blue cones) | #00465F | 0.149 |
| Achromatopsia (no color) | #3C3C3C | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B239D
#3B239D
oklch(37.7% 0.183 282.2)
- #4A4300
#4A4300
oklch(37.8% 0.079 102.7)
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 #3B239D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo Blue #3A18B1 ΔE 0.034
- Imperial Purple #480CA8 ΔE 0.035
- Sapphire #2138AB ΔE 0.055
- Chrysanthemum #560BAD ΔE 0.058
- Ultramarine #2000B1 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
- Blueberry #464196 ΔE 0.070
- Indigo #4B0082 ΔE 0.072
Use #3B239D 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.