#554D99
Closest named color: Twilight (#4E518B). oklch(46.6% 0.12 285.6), rgb(85, 77, 153).
Aa
White text reads best on this color (7.22:1).
About this color
#554D99 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.120 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.029 away. White text reads best on it, at 7.22:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #554D99 |
| RGB | rgb(85, 77, 153) |
| HSL | hsl(246, 33%, 45%) |
| OKLCH | oklch(46.6% 0.12 285.6) |
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 #554D99 | 7.22:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #554D99 | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #554D99 text on white | 7.22:1 | AAA | Lc 84.9 | Fine for body text |
| #554D99 text on black | 2.90:1 | Fails | Lc -17.1 | 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 700.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F5
oklch(93.5% 0.017 286.1)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BCBCE5
oklch(80.9% 0.058 285)
-
Step 400
400
#9B98D8
oklch(70.6% 0.093 285.9)
-
Step 500
500
#837ECE
oklch(63.1% 0.119 285.3)
-
Step 600
600
#6E66BB
oklch(55.7% 0.129 285.7)
-
Step 700
700 (this color)
#554D99
oklch(46.6% 0.12 285.6)
-
Step 800
800
#4B4582
oklch(42.7% 0.099 285.9)
-
Step 900
900
#3E3B69
oklch(37.8% 0.077 285)
-
Step 950
950
#24233D
oklch(27.1% 0.048 284.5)
#554D99 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) | #2D599C | 0.056 |
| Deuteranopia (no green cones) | #2B5597 | 0.056 |
| Tritanopia (no blue cones) | #405D6C | 0.101 |
| Achromatopsia (no color) | #575757 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554D99
#554D99
oklch(46.6% 0.12 285.6)
- #625C00
#625C00
oklch(46.6% 0.099 105.2)
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 #554D99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.029
- Blueberry #464196 ΔE 0.042
- Dusk #4E5481 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.054
- Dusk Blue #26538D ΔE 0.064
- Rebecca Purple #663399 ΔE 0.065
Use #554D99 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.