#434075
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.088 284.3), rgb(67, 64, 117).
Aa
White text reads best on this color (9.42:1).
About this color
#434075 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.088 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 9.42:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #434075 |
| RGB | rgb(67, 64, 117) |
| HSL | hsl(243, 29%, 35%) |
| OKLCH | oklch(40.1% 0.088 284.3) |
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 #434075 | 9.42:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #434075 | 2.22:1 | Fails | Lc 12.3 | Not readable |
| #434075 text on white | 9.42:1 | AAA | Lc 91.7 | Preferred for body text |
| #434075 text on black | 2.22:1 | Fails | Lc -10.7 | 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 900.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F1
oklch(88.4% 0.037 285.6)
-
Step 300
300
#BBBCEA
oklch(81% 0.065 283.9)
-
Step 400
400
#9997E0
oklch(70.6% 0.106 284.6)
-
Step 500
500
#817CD7
oklch(63.1% 0.134 284.3)
-
Step 600
600
#6B63C4
oklch(55.5% 0.146 284.3)
-
Step 700
700
#5A52AA
oklch(49.1% 0.136 284.3)
-
Step 800
800
#494489
oklch(42.7% 0.111 283.9)
-
Step 900
900 (this color)
#434075
oklch(40.1% 0.088 284.3)
-
Step 950
950
#242240
oklch(27% 0.055 285.1)
#434075 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) | #2D4877 | 0.036 |
| Deuteranopia (no green cones) | #2B4474 | 0.035 |
| Tritanopia (no blue cones) | #344B55 | 0.075 |
| Achromatopsia (no color) | #464646 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434075
#434075
oklch(40.1% 0.088 284.3)
- #504A00
#504A00
oklch(40.2% 0.085 104.3)
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 #434075, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.060
- Twilight Blue #0A437A ΔE 0.060
- Cobalt #1E488F ΔE 0.060
- Dusk #4E5481 ΔE 0.062
- Light Navy #155084 ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.064
Use #434075 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.