#424187
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.114 280.9), rgb(66, 65, 135).
Aa
White text reads best on this color (8.98:1).
About this color
#424187 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.114 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.015 away. White text reads best on it, at 8.98:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #424187 |
| RGB | rgb(66, 65, 135) |
| HSL | hsl(241, 35%, 39%) |
| OKLCH | oklch(41.4% 0.114 280.9) |
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 #424187 | 8.98:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #424187 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #424187 text on white | 8.98:1 | AAA | Lc 90.4 | Preferred for body text |
| #424187 text on black | 2.33:1 | Fails | Lc -11.9 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F2
oklch(88.5% 0.037 280.6)
-
Step 300
300
#B8BCEB
oklch(80.8% 0.066 281)
-
Step 400
400
#9599E2
oklch(70.8% 0.106 280.9)
-
Step 500
500
#7C7ED9
oklch(63.2% 0.135 280.8)
-
Step 600
600
#6665C7
oklch(55.6% 0.148 280.9)
-
Step 700
700
#5553AC
oklch(49.1% 0.138 281)
-
Step 800
800 (this color)
#424187
oklch(41.4% 0.114 280.9)
-
Step 900
900
#3A3A6F
oklch(37.6% 0.089 281.2)
-
Step 950
950
#222341
oklch(27.1% 0.055 280.6)
#424187 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) | #204C89 | 0.047 |
| Deuteranopia (no green cones) | #1A4785 | 0.048 |
| Tritanopia (no blue cones) | #28505D | 0.099 |
| Achromatopsia (no color) | #494949 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424187
#424187
oklch(41.4% 0.114 280.9)
- #564C00
#564C00
oklch(41.4% 0.086 100.7)
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 #424187, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.015
- Blueberry #464196 ΔE 0.026
- Cobalt #1E488F ΔE 0.045
- Twilight #4E518B ΔE 0.050
- Dusk Blue #26538D ΔE 0.055
- Light Navy #155084 ΔE 0.060
- Dusk #4E5481 ΔE 0.062
- Twilight Blue #0A437A ΔE 0.064
Use #424187 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.