#433F72
Closest named color: Dark Slate Blue (#483D8B). oklch(39.7% 0.085 285.4), rgb(67, 63, 114).
Aa
White text reads best on this color (9.57:1).
About this color
#433F72 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.085 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.044 away. White text reads best on it, at 9.57:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #433F72 |
| RGB | rgb(67, 63, 114) |
| HSL | hsl(245, 29%, 35%) |
| OKLCH | oklch(39.7% 0.085 285.4) |
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 #433F72 | 9.57:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #433F72 | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #433F72 text on white | 9.57:1 | AAA | Lc 92.1 | Preferred for body text |
| #433F72 text on black | 2.19:1 | Fails | Lc -10.3 | 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
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F0
oklch(88.4% 0.036 285.7)
-
Step 300
300
#BCBBE9
oklch(80.8% 0.065 285.9)
-
Step 400
400
#9A97DD
oklch(70.6% 0.101 285.4)
-
Step 500
500
#837CD4
oklch(63.1% 0.13 285.7)
-
Step 600
600
#6D64C1
oklch(55.6% 0.14 285.3)
-
Step 700
700
#5B52A7
oklch(49% 0.132 285.3)
-
Step 800
800
#4B4487
oklch(42.8% 0.108 285.6)
-
Step 900
900 (this color)
#433F72
oklch(39.7% 0.085 285.4)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#433F72 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) | #2D4774 | 0.036 |
| Deuteranopia (no green cones) | #2C4471 | 0.035 |
| Tritanopia (no blue cones) | #364953 | 0.071 |
| Achromatopsia (no color) | #454545 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433F72
#433F72
oklch(39.7% 0.085 285.4)
- #4E4900
#4E4900
oklch(39.8% 0.084 105.1)
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 #433F72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.044
- Blueberry #464196 ΔE 0.060
- Twilight Blue #0A437A ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.062
- Cobalt #1E488F ΔE 0.064
- Twilight #4E518B ΔE 0.064
- Dusk #4E5481 ΔE 0.066
- Light Navy #155084 ΔE 0.066
Use #433F72 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.