#3B277A
Closest named color: Indigo (#4B0082). oklch(34.9% 0.134 288.6), rgb(59, 39, 122).
Aa
White text reads best on this color (11.95:1).
About this color
#3B277A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.134 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 11.95:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.75:1 |
| White text | 11.95:1 |
Values
| HEX | #3B277A |
| RGB | rgb(59, 39, 122) |
| HSL | hsl(254, 52%, 32%) |
| OKLCH | oklch(34.9% 0.134 288.6) |
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 #3B277A | 11.95:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #3B277A | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #3B277A text on white | 11.95:1 | AAA | Lc 96.9 | Preferred for body text |
| #3B277A text on black | 1.75:1 | 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
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D7D4FD
oklch(88.5% 0.056 288.5)
-
Step 300
300
#BEB6FE
oklch(80.9% 0.101 289)
-
Step 400
400
#9E8DFD
oklch(70.7% 0.16 288.6)
-
Step 500
500
#896BFB
oklch(63% 0.205 288.7)
-
Step 600
600
#754DEA
oklch(55.5% 0.223 288.6)
-
Step 700
700
#633DCC
oklch(49.2% 0.207 288.5)
-
Step 800
800
#5034A5
oklch(42.8% 0.172 288.3)
-
Step 900
900 (this color)
#3B277A
oklch(34.9% 0.134 288.6)
-
Step 950
950
#261D4C
oklch(27% 0.083 288.3)
#3B277A 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 | 0.071 |
| Deuteranopia (no green cones) | #003578 | 0.070 |
| Tritanopia (no blue cones) | #253B4D | 0.108 |
| Achromatopsia (no color) | #373737 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B277A
#3B277A
oklch(34.9% 0.134 288.6)
- #3E3D00
#3E3D00
oklch(35% 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 #3B277A, 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 0.066
- Royal Purple #4B006E ΔE 0.068
- Midnight Blue #191970 ΔE 0.073
- Marine Blue #01386A ΔE 0.080
- Blueberry #464196 ΔE 0.081
- Imperial Purple #480CA8 ΔE 0.083
- Twilight Blue #0A437A ΔE 0.084
Use #3B277A 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.