#433E57
Closest named color: Dark Grey Blue (#29465B). oklch(37.9% 0.043 293.4), rgb(67, 62, 87).
Aa
White text reads best on this color (10.16:1).
About this color
#433E57 is a dark, muted purple. In OKLCH its lightness is 38%, its chroma 0.043 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.041 away. White text reads best on it, at 10.16:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.06:1 |
| White text | 10.16:1 |
Values
| HEX | #433E57 |
| RGB | rgb(67, 62, 87) |
| HSL | hsl(252, 17%, 29%) |
| OKLCH | oklch(37.9% 0.043 293.4) |
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 #433E57 | 10.16:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #433E57 | 2.06:1 | Fails | Lc 10.3 | Not readable |
| #433E57 text on white | 10.16:1 | AAA | Lc 93.6 | Preferred for body text |
| #433E57 text on black | 2.06:1 | Fails | Lc -8.9 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9F0
oklch(93.7% 0.009 292.8)
-
Step 200
200
#D9D7E4
oklch(88.5% 0.018 293.1)
-
Step 300
300
#C1BDD4
oklch(80.9% 0.032 293.6)
-
Step 400
400
#A19BBE
oklch(70.6% 0.051 292.9)
-
Step 500
500
#8B82AE
oklch(63.1% 0.066 293.8)
-
Step 600
600
#756B99
oklch(55.5% 0.071 293.9)
-
Step 700
700
#625A83
oklch(49.2% 0.065 292.8)
-
Step 800
800
#50496A
oklch(42.6% 0.055 293.7)
-
Step 900
900 (this color)
#433E57
oklch(37.9% 0.043 293.4)
-
Step 950
950
#272433
oklch(27% 0.028 293.6)
#433E57 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) | #384258 | 0.020 |
| Deuteranopia (no green cones) | #394156 | 0.018 |
| Tritanopia (no blue cones) | #3F4247 | 0.035 |
| Achromatopsia (no color) | #414141 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433E57
#433E57
oklch(37.9% 0.043 293.4)
- #42452A
#42452A
oklch(38% 0.043 113.6)
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 #433E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.043
- Charcoal #264653 ΔE 0.048
- Onyx #343A40 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.058
- Dark Slate Gray #2F4F4F ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.067
- Gunmetal #293241 ΔE 0.068
Use #433E57 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.