#4239A2
Closest named color: Blueberry (#464196). oklch(42.1% 0.163 280.6), rgb(66, 57, 162).
Aa
White text reads best on this color (8.97:1).
About this color
#4239A2 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.163 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.029 away. White text reads best on it, at 8.97:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.33:1 |
| White text | 8.97:1 |
Values
| HEX | #4239A2 |
| RGB | rgb(66, 57, 162) |
| HSL | hsl(245, 48%, 43%) |
| OKLCH | oklch(42.1% 0.163 280.6) |
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 #4239A2 | 8.97:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #4239A2 | 2.33:1 | Fails | Lc 13.9 | Not readable |
| #4239A2 text on white | 8.97:1 | AAA | Lc 90.1 | Preferred for body text |
| #4239A2 text on black | 2.33:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D2D6FC
oklch(88.5% 0.052 280.5)
-
Step 300
300
#B5BAFD
oklch(80.9% 0.095 280.7)
-
Step 400
400
#9093FD
oklch(70.7% 0.153 280.5)
-
Step 500
500
#7874FA
oklch(63.1% 0.194 280.6)
-
Step 600
600
#6358E9
oklch(55.6% 0.211 280.4)
-
Step 700
700
#5346CB
oklch(49% 0.197 280.7)
-
Step 800
800 (this color)
#4239A2
oklch(42.1% 0.163 280.6)
-
Step 900
900
#383482
oklch(37.6% 0.127 280.7)
-
Step 950
950
#201F4C
oklch(26.9% 0.081 280.5)
#4239A2 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) | #004DA5 | 0.067 |
| Deuteranopia (no green cones) | #0045A0 | 0.061 |
| Tritanopia (no blue cones) | #025368 | 0.139 |
| Achromatopsia (no color) | #494949 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4239A2
#4239A2
oklch(42.1% 0.163 280.6)
- #584E00
#584E00
oklch(42.1% 0.088 100.9)
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 #4239A2, closest first.
No curated palette has a color within ΔE 0.04 of #4239A2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.041
- Sapphire #2138AB ΔE 0.046
- Indigo Blue #3A18B1 ΔE 0.062
- Cobalt #1E488F ΔE 0.063
- Majorelle Blue #3F37C9 ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Imperial Purple #480CA8 ΔE 0.066
Use #4239A2 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.