#57478C
Closest named color: Twilight (#4E518B). oklch(44.8% 0.11 292), rgb(87, 71, 140).
Aa
White text reads best on this color (7.82:1).
About this color
#57478C is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.110 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 7.82:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #57478C |
| RGB | rgb(87, 71, 140) |
| HSL | hsl(254, 33%, 41%) |
| OKLCH | oklch(44.8% 0.11 292) |
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 #57478C | 7.82:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #57478C | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #57478C text on white | 7.82:1 | AAA | Lc 87.0 | Fine for body text |
| #57478C text on black | 2.68:1 | Fails | Lc -15.1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#D9D5EF
oklch(88.4% 0.036 292.7)
-
Step 300
300
#C1BAE7
oklch(81% 0.063 292.1)
-
Step 400
400
#A295DC
oklch(70.8% 0.103 292)
-
Step 500
500
#8C79D2
oklch(63.1% 0.132 292)
-
Step 600
600
#7760BF
oklch(55.6% 0.143 292.2)
-
Step 700
700
#644FA5
oklch(49.1% 0.133 292)
-
Step 800
800 (this color)
#57478C
oklch(44.8% 0.11 292)
-
Step 900
900
#43386B
oklch(37.8% 0.085 291.7)
-
Step 950
950
#27213F
oklch(27% 0.055 291.5)
#57478C 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) | #2E538E | 0.061 |
| Deuteranopia (no green cones) | #30518A | 0.059 |
| Tritanopia (no blue cones) | #4A5563 | 0.090 |
| Achromatopsia (no color) | #525252 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57478C
#57478C
oklch(44.8% 0.11 292)
- #575A00
#575A00
oklch(45% 0.1 112)
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 #57478C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Blueberry #464196 ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.039
- Dusk #4E5481 ΔE 0.045
- Rebecca Purple #663399 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.063
- Dusty Grape #545775 ΔE 0.066
- Dusky Blue #475F94 ΔE 0.067
Use #57478C 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.