#57498B
Closest named color: Twilight (#4E518B). oklch(45.1% 0.105 291.3), rgb(87, 73, 139).
Aa
White text reads best on this color (7.68:1).
About this color
#57498B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.105 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.025 away. White text reads best on it, at 7.68:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #57498B |
| RGB | rgb(87, 73, 139) |
| HSL | hsl(253, 31%, 42%) |
| OKLCH | oklch(45.1% 0.105 291.3) |
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 #57498B | 7.68:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #57498B | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #57498B text on white | 7.68:1 | AAA | Lc 86.6 | Fine for body text |
| #57498B text on black | 2.73:1 | Fails | Lc -15.5 | Dividers and decoration only |
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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#D9D6EF
oklch(88.6% 0.034 291.2)
-
Step 300
300
#C0BAE6
oklch(80.8% 0.062 291.2)
-
Step 400
400
#A196DA
oklch(70.8% 0.099 291.1)
-
Step 500
500
#8B7ACF
oklch(63.1% 0.126 291.6)
-
Step 600
600
#7562BC
oklch(55.6% 0.136 291)
-
Step 700
700
#6350A2
oklch(49% 0.128 291.7)
-
Step 800
800 (this color)
#57498B
oklch(45.1% 0.105 291.3)
-
Step 900
900
#423869
oklch(37.5% 0.082 291.3)
-
Step 950
950
#27213E
oklch(27% 0.053 291.9)
#57498B 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) | #32548D | 0.056 |
| Deuteranopia (no green cones) | #335289 | 0.054 |
| Tritanopia (no blue cones) | #4A5663 | 0.087 |
| Achromatopsia (no color) | #535353 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57498B
#57498B
oklch(45.1% 0.105 291.3)
- #585A00
#585A00
oklch(45.1% 0.099 111.3)
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 #57498B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.025
- Dusk #4E5481 ΔE 0.040
- Blueberry #464196 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.059
- Dusty Grape #545775 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.062
- Rebecca Purple #663399 ΔE 0.062
Use #57498B 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.