#4A2F7B
Closest named color: Dark Slate Blue (#483D8B). oklch(37.9% 0.124 296.4), rgb(74, 47, 123).
Aa
White text reads best on this color (10.58:1).
About this color
#4A2F7B is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.124 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 10.58:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #4A2F7B |
| RGB | rgb(74, 47, 123) |
| HSL | hsl(261, 45%, 33%) |
| OKLCH | oklch(37.9% 0.124 296.4) |
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 #4A2F7B | 10.58:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #4A2F7B | 1.98:1 | Fails | Lc 9.7 | Not readable |
| #4A2F7B text on white | 10.58:1 | AAA | Lc 94.2 | Preferred for body text |
| #4A2F7B text on black | 1.98:1 | Fails | Lc -8.4 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DCD3F8
oklch(88.6% 0.051 296.5)
-
Step 300
300
#C6B5F6
oklch(81% 0.092 296.3)
-
Step 400
400
#AA8BF2
oklch(70.7% 0.149 296.3)
-
Step 500
500
#976AED
oklch(63.2% 0.19 296.4)
-
Step 600
600
#824DDB
oklch(55.6% 0.206 296.2)
-
Step 700
700
#6F3CBE
oklch(49.1% 0.192 296.6)
-
Step 800
800
#5A339A
oklch(42.7% 0.16 296.4)
-
Step 900
900 (this color)
#4A2F7B
oklch(37.9% 0.124 296.4)
-
Step 950
950
#2B1C48
oklch(27.1% 0.079 296.5)
#4A2F7B 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) | #003F7D | 0.088 |
| Deuteranopia (no green cones) | #0E3E79 | 0.082 |
| Tritanopia (no blue cones) | #3E3F50 | 0.096 |
| Achromatopsia (no color) | #3F3F3F | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A2F7B
#4A2F7B
oklch(37.9% 0.124 296.4)
- #404700
#404700
oklch(37.8% 0.086 116)
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 #4A2F7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.060
- Indigo #4B0082 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.073
- Royal Purple #4B006E ΔE 0.078
- Cobalt #1E488F ΔE 0.085
- Twilight Blue #0A437A ΔE 0.088
- Imperial Purple #480CA8 ΔE 0.089
Use #4A2F7B 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.