#554C88
Closest named color: Twilight (#4E518B). oklch(45.4% 0.096 288.9), rgb(85, 76, 136).
Aa
White text reads best on this color (7.56:1).
About this color
#554C88 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.096 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.016 away. White text reads best on it, at 7.56:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #554C88 |
| RGB | rgb(85, 76, 136) |
| HSL | hsl(249, 28%, 42%) |
| OKLCH | oklch(45.4% 0.096 288.9) |
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 #554C88 | 7.56:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #554C88 | 2.77:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #554C88 text on white | 7.56:1 | AAA | Lc 86.2 | Fine for body text |
| #554C88 text on black | 2.77:1 | Fails | Lc -15.9 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#BFBBE3
oklch(80.8% 0.056 289.7)
-
Step 400
400
#9E98D6
oklch(70.8% 0.09 288.3)
-
Step 500
500
#877DCA
oklch(63.1% 0.114 288.6)
-
Step 600
600
#7265B7
oklch(55.6% 0.124 289)
-
Step 700
700
#60539E
oklch(49.1% 0.117 289.3)
-
Step 800
800 (this color)
#554C88
oklch(45.4% 0.096 288.9)
-
Step 900
900
#413A67
oklch(37.7% 0.076 289.4)
-
Step 950
950
#26223C
oklch(27% 0.048 289.9)
#554C88 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) | #38558A | 0.045 |
| Deuteranopia (no green cones) | #385387 | 0.044 |
| Tritanopia (no blue cones) | #485863 | 0.082 |
| Achromatopsia (no color) | #545454 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554C88
#554C88
oklch(45.4% 0.096 288.9)
- #5B5A05
#5B5A05
oklch(45.4% 0.096 108.9)
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 #554C88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.016
- Dusk #4E5481 ΔE 0.029
- Blueberry #464196 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.049
- Dusty Grape #545775 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.054
- Dusk Blue #26538D ΔE 0.060
Use #554C88 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.