#433F53
Closest named color: Charcoal Grey (#3C4142). oklch(38% 0.034 293.9), rgb(67, 63, 83).
Aa
White text reads best on this color (10.12:1).
About this color
#433F53 is a dark, muted purple. In OKLCH its lightness is 38%, its chroma 0.034 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.035 away. White text reads best on it, at 10.12:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #433F53 |
| RGB | rgb(67, 63, 83) |
| HSL | hsl(252, 14%, 29%) |
| OKLCH | oklch(38% 0.034 293.9) |
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 #433F53 | 10.12:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #433F53 | 2.07:1 | Fails | Lc 10.4 | Not readable |
| #433F53 text on white | 10.12:1 | AAA | Lc 93.5 | Preferred for body text |
| #433F53 text on black | 2.07:1 | Fails | Lc -9.0 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9EE
oklch(93.6% 0.007 295.4)
-
Step 200
200
#D9D7E2
oklch(88.4% 0.015 294.4)
-
Step 300
300
#C1BED0
oklch(80.9% 0.025 293.5)
-
Step 400
400
#A19CB8
oklch(70.6% 0.041 293.5)
-
Step 500
500
#8B84A7
oklch(63.2% 0.052 294)
-
Step 600
600
#756D92
oklch(55.6% 0.057 294.4)
-
Step 700
700
#625B7C
oklch(49.1% 0.053 294.1)
-
Step 800
800
#504B65
oklch(42.8% 0.043 293.3)
-
Step 900
900 (this color)
#433F53
oklch(38% 0.034 293.9)
-
Step 950
950
#272530
oklch(27.1% 0.02 293.3)
#433F53 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) | #3B4254 | 0.015 |
| Deuteranopia (no green cones) | #3B4152 | 0.014 |
| Tritanopia (no blue cones) | #404246 | 0.028 |
| Achromatopsia (no color) | #424242 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433F53
#433F53
oklch(38% 0.034 293.9)
- #424530
#424530
oklch(38.1% 0.034 114.6)
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 #433F53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.040
- Onyx #343A40 ΔE 0.044
- Charcoal #264653 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.059
- Gunmetal #293241 ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.069
Use #433F53 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.