#434183
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.108 282), rgb(67, 65, 131).
Aa
White text reads best on this color (9.04:1).
About this color
#434183 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.108 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.019 away. White text reads best on it, at 9.04:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #434183 |
| RGB | rgb(67, 65, 131) |
| HSL | hsl(242, 34%, 38%) |
| OKLCH | oklch(41.2% 0.108 282) |
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 #434183 | 9.04:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #434183 | 2.32:1 | Fails | Lc 13.4 | Not readable |
| #434183 text on white | 9.04:1 | AAA | Lc 90.6 | Preferred for body text |
| #434183 text on black | 2.32:1 | Fails | Lc -11.7 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D5D7F0
oklch(88.5% 0.034 282)
-
Step 300
300
#B9BCE9
oklch(80.8% 0.063 281.9)
-
Step 400
400
#9699DE
oklch(70.7% 0.1 281.6)
-
Step 500
500
#7E7ED5
oklch(63.1% 0.129 282.1)
-
Step 600
600
#6866C2
oklch(55.7% 0.14 281.8)
-
Step 700
700
#5754A7
oklch(49.1% 0.129 282.2)
-
Step 800
800 (this color)
#434183
oklch(41.2% 0.108 282)
-
Step 900
900
#3B3B6D
oklch(37.8% 0.084 281.6)
-
Step 950
950
#222340
oklch(27.1% 0.053 280.7)
#434183 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) | #244B85 | 0.044 |
| Deuteranopia (no green cones) | #204682 | 0.044 |
| Tritanopia (no blue cones) | #2D4F5B | 0.093 |
| Achromatopsia (no color) | #494949 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434183
#434183
oklch(41.2% 0.108 282)
- #554C00
#554C00
oklch(41.3% 0.086 101.6)
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 #434183, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.019
- Blueberry #464196 ΔE 0.032
- Cobalt #1E488F ΔE 0.048
- Twilight #4E518B ΔE 0.050
- Dusk Blue #26538D ΔE 0.057
- Dusk #4E5481 ΔE 0.060
- Light Navy #155084 ΔE 0.060
- Twilight Blue #0A437A ΔE 0.063
Use #434183 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.