#433F6D
Closest named color: Dark Slate Blue (#483D8B). oklch(39.4% 0.077 286.3), rgb(67, 63, 109).
Aa
White text reads best on this color (9.67:1).
About this color
#433F6D is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.077 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 9.67:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.17:1 |
| White text | 9.67:1 |
Values
| HEX | #433F6D |
| RGB | rgb(67, 63, 109) |
| HSL | hsl(245, 27%, 34%) |
| OKLCH | oklch(39.4% 0.077 286.3) |
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 #433F6D | 9.67:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #433F6D | 2.17:1 | Fails | Lc 11.6 | Not readable |
| #433F6D text on white | 9.67:1 | AAA | Lc 92.3 | Preferred for body text |
| #433F6D text on black | 2.17:1 | Fails | Lc -10.1 | 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
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EE
oklch(88.4% 0.033 287.6)
-
Step 300
300
#BDBCE5
oklch(81% 0.057 286.2)
-
Step 400
400
#9C98D8
oklch(70.7% 0.093 286.6)
-
Step 500
500
#847ECD
oklch(63.2% 0.117 286)
-
Step 600
600
#6E66BA
oklch(55.6% 0.127 285.8)
-
Step 700
700
#5D54A0
oklch(49.1% 0.119 286.6)
-
Step 800
800
#4B4582
oklch(42.7% 0.099 285.9)
-
Step 900
900 (this color)
#433F6D
oklch(39.4% 0.077 286.3)
-
Step 950
950
#25233D
oklch(27.2% 0.048 286.3)
#433F6D 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) | #30466F | 0.032 |
| Deuteranopia (no green cones) | #2F436C | 0.031 |
| Tritanopia (no blue cones) | #384850 | 0.066 |
| Achromatopsia (no color) | #444444 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433F6D
#433F6D
oklch(39.4% 0.077 286.3)
- #4B480D
#4B480D
oklch(39.3% 0.076 106.4)
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 #433F6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.056
- Twilight Blue #0A437A ΔE 0.063
- Dusk #4E5481 ΔE 0.068
- Blueberry #464196 ΔE 0.068
- Twilight #4E518B ΔE 0.069
- Light Navy #155084 ΔE 0.069
- Charcoal #264653 ΔE 0.069
Use #433F6D 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.