#3C287A
Closest named color: Indigo (#4B0082). oklch(35.2% 0.132 289), rgb(60, 40, 122).
Aa
White text reads best on this color (11.81:1).
About this color
#3C287A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.132 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.059 away. White text reads best on it, at 11.81:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.77:1 |
| White text | 11.81:1 |
Values
| HEX | #3C287A |
| RGB | rgb(60, 40, 122) |
| HSL | hsl(255, 51%, 32%) |
| OKLCH | oklch(35.2% 0.132 289) |
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 #3C287A | 11.81:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #3C287A | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #3C287A text on white | 11.81:1 | AAA | Lc 96.7 | Preferred for body text |
| #3C287A text on black | 1.77:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FD
oklch(93.6% 0.03 290)
-
Step 200
200
#D7D4FC
oklch(88.5% 0.055 288.7)
-
Step 300
300
#BEB6FD
oklch(80.8% 0.1 289.1)
-
Step 400
400
#9F8DFC
oklch(70.7% 0.159 289.1)
-
Step 500
500
#8A6CFA
oklch(63.2% 0.203 289)
-
Step 600
600
#764EE9
oklch(55.7% 0.221 289)
-
Step 700
700
#633DCA
oklch(49% 0.205 288.9)
-
Step 800
800
#5134A4
oklch(42.8% 0.17 289)
-
Step 900
900 (this color)
#3C287A
oklch(35.2% 0.132 289)
-
Step 950
950
#261D4C
oklch(27% 0.083 288.3)
#3C287A 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) | #00397D | 0.072 |
| Deuteranopia (no green cones) | #003578 | 0.070 |
| Tritanopia (no blue cones) | #273C4D | 0.108 |
| Achromatopsia (no color) | #373737 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C287A
#3C287A
oklch(35.2% 0.132 289)
- #3F3E00
#3F3E00
oklch(35.3% 0.076 108.7)
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 #3C287A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.063
- Royal Purple #4B006E ΔE 0.069
- Midnight Blue #191970 ΔE 0.076
- Blueberry #464196 ΔE 0.078
- Marine Blue #01386A ΔE 0.080
- Imperial Purple #480CA8 ΔE 0.083
- Twilight Blue #0A437A ΔE 0.083
Use #3C287A 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.