#433D57
Closest named color: Dark Grey Blue (#29465B). oklch(37.7% 0.044 294.8), rgb(67, 61, 87).
Aa
White text reads best on this color (10.27:1).
About this color
#433D57 is a dark, muted purple. In OKLCH its lightness is 38%, its chroma 0.044 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.043 away. White text reads best on it, at 10.27:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #433D57 |
| RGB | rgb(67, 61, 87) |
| HSL | hsl(254, 18%, 29%) |
| OKLCH | oklch(37.7% 0.044 294.8) |
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 #433D57 | 10.27:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #433D57 | 2.04:1 | Fails | Lc 10.1 | Not readable |
| #433D57 text on white | 10.27:1 | AAA | Lc 93.8 | Preferred for body text |
| #433D57 text on black | 2.04:1 | Fails | Lc -8.7 | 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
#DAD7E4
oklch(88.5% 0.018 296.6)
-
Step 300
300
#C2BDD4
oklch(81% 0.032 295.6)
-
Step 400
400
#A29BBF
oklch(70.8% 0.052 293.9)
-
Step 500
500
#8C82AF
oklch(63.2% 0.068 294.6)
-
Step 600
600
#766B9A
oklch(55.6% 0.073 294.7)
-
Step 700
700
#635984
oklch(49.1% 0.069 294.4)
-
Step 800
800
#51496B
oklch(42.8% 0.056 294.7)
-
Step 900
900 (this color)
#433D57
oklch(37.7% 0.044 294.8)
-
Step 950
950
#272433
oklch(27% 0.028 293.6)
#433D57 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) | #374158 | 0.021 |
| Deuteranopia (no green cones) | #384056 | 0.020 |
| Tritanopia (no blue cones) | #3F4146 | 0.037 |
| Achromatopsia (no color) | #414141 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433D57
#433D57
oklch(37.7% 0.044 294.8)
- #414429
#414429
oklch(37.6% 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 #433D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.045
- Onyx #343A40 ΔE 0.049
- Charcoal #264653 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.065
- Gunmetal #293241 ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.068
Use #433D57 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.