#554C90
Closest named color: Twilight (#4E518B). oklch(45.8% 0.108 287.4), rgb(85, 76, 144).
Aa
White text reads best on this color (7.43:1).
About this color
#554C90 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.108 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.020 away. White text reads best on it, at 7.43:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.82:1 |
| White text | 7.43:1 |
Values
| HEX | #554C90 |
| RGB | rgb(85, 76, 144) |
| HSL | hsl(248, 31%, 43%) |
| OKLCH | oklch(45.8% 0.108 287.4) |
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 #554C90 | 7.43:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #554C90 | 2.82:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #554C90 text on white | 7.43:1 | AAA | Lc 85.7 | Fine for body text |
| #554C90 text on black | 2.82:1 | Fails | Lc -16.3 | 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
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BDBBE8
oklch(80.9% 0.063 286.9)
-
Step 400
400
#9D97DC
oklch(70.8% 0.1 287.5)
-
Step 500
500
#867BD3
oklch(63.1% 0.13 287.8)
-
Step 600
600
#7063C0
oklch(55.6% 0.14 287.3)
-
Step 700
700
#5E51A6
oklch(49% 0.132 287.5)
-
Step 800
800 (this color)
#554C90
oklch(45.8% 0.108 287.4)
-
Step 900
900
#3F396B
oklch(37.6% 0.084 287.2)
-
Step 950
950
#25223F
oklch(27.1% 0.053 287)
#554C90 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) | #335792 | 0.051 |
| Deuteranopia (no green cones) | #32538E | 0.050 |
| Tritanopia (no blue cones) | #445A67 | 0.092 |
| Achromatopsia (no color) | #555555 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554C90
#554C90
oklch(45.8% 0.108 287.4)
- #5E5B00
#5E5B00
oklch(45.9% 0.099 107.5)
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 #554C90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.020
- Dusk #4E5481 ΔE 0.038
- Blueberry #464196 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.053
- Dusty Grape #545775 ΔE 0.061
- Dusk Blue #26538D ΔE 0.061
Use #554C90 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.