#433A70
Closest named color: Dark Slate Blue (#483D8B). oklch(38.5% 0.09 289.1), rgb(67, 58, 112).
Aa
White text reads best on this color (10.10:1).
About this color
#433A70 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.090 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.046 away. White text reads best on it, at 10.10:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.07:1 |
| White text | 10.10:1 |
Values
| HEX | #433A70 |
| RGB | rgb(67, 58, 112) |
| HSL | hsl(250, 32%, 33%) |
| OKLCH | oklch(38.5% 0.09 289.1) |
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 #433A70 | 10.10:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #433A70 | 2.07:1 | Fails | Lc 10.6 | Not readable |
| #433A70 text on white | 10.10:1 | AAA | Lc 93.3 | Preferred for body text |
| #433A70 text on black | 2.07:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F1
oklch(88.6% 0.037 289)
-
Step 300
300
#BFBAEA
oklch(80.9% 0.067 289.6)
-
Step 400
400
#9F95E0
oklch(70.7% 0.108 289.4)
-
Step 500
500
#8879D7
oklch(63.1% 0.138 289.1)
-
Step 600
600
#7360C4
oklch(55.6% 0.15 289.3)
-
Step 700
700
#604FA9
oklch(49% 0.139 288.9)
-
Step 800
800
#4F4189
oklch(42.7% 0.115 289.5)
-
Step 900
900 (this color)
#433A70
oklch(38.5% 0.09 289.1)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#433A70 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) | #274372 | 0.044 |
| Deuteranopia (no green cones) | #27406F | 0.042 |
| Tritanopia (no blue cones) | #37454F | 0.076 |
| Achromatopsia (no color) | #424242 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433A70
#433A70
oklch(38.5% 0.09 289.1)
- #474700
#474700
oklch(38.5% 0.084 109.8)
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 #433A70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.046
- Blueberry #464196 ΔE 0.064
- Twilight Blue #0A437A ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.067
- Cobalt #1E488F ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.075
- Twilight #4E518B ΔE 0.076
- Marine Blue #01386A ΔE 0.076
Use #433A70 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.