#57458A
Closest named color: Twilight (#4E518B). oklch(44.3% 0.111 293.4), rgb(87, 69, 138).
Aa
White text reads best on this color (8.00:1).
About this color
#57458A is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.111 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.034 away. White text reads best on it, at 8.00:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #57458A |
| RGB | rgb(87, 69, 138) |
| HSL | hsl(256, 33%, 41%) |
| OKLCH | oklch(44.3% 0.111 293.4) |
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 #57458A | 8.00:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #57458A | 2.62:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #57458A text on white | 8.00:1 | AAA | Lc 87.6 | Fine for body text |
| #57458A text on black | 2.62:1 | Fails | Lc -14.6 | 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 800.
-
Step 50
50
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5EF
oklch(88.5% 0.036 294.5)
-
Step 300
300
#C2B9E7
oklch(80.8% 0.065 293.9)
-
Step 400
400
#A394DB
oklch(70.6% 0.103 293.3)
-
Step 500
500
#8E78D1
oklch(63.1% 0.132 293.6)
-
Step 600
600
#785FBE
oklch(55.5% 0.144 293.3)
-
Step 700
700
#664EA4
oklch(49.1% 0.134 293.8)
-
Step 800
800 (this color)
#57458A
oklch(44.3% 0.111 293.4)
-
Step 900
900
#44376B
oklch(37.7% 0.087 293.3)
-
Step 950
950
#28213E
oklch(27.1% 0.053 293.6)
#57458A 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) | #2C518C | 0.064 |
| Deuteranopia (no green cones) | #2F4F88 | 0.061 |
| Tritanopia (no blue cones) | #4B5261 | 0.088 |
| Achromatopsia (no color) | #505050 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57458A
#57458A
oklch(44.3% 0.111 293.4)
- #545900
#545900
oklch(44.4% 0.099 113.5)
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 #57458A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.034
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.038
- Dusk #4E5481 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.067
- Dusty Grape #545775 ΔE 0.068
- Dusk Blue #26538D ΔE 0.070
Use #57458A 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.