#554D91
Closest named color: Twilight (#4E518B). oklch(46.1% 0.108 286.7), rgb(85, 77, 145).
Aa
White text reads best on this color (7.35:1).
About this color
#554D91 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 0.019 away. White text reads best on it, at 7.35:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #554D91 |
| RGB | rgb(85, 77, 145) |
| HSL | hsl(247, 31%, 44%) |
| OKLCH | oklch(46.1% 0.108 286.7) |
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 #554D91 | 7.35:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #554D91 | 2.85:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #554D91 text on white | 7.35:1 | AAA | Lc 85.4 | Fine for body text |
| #554D91 text on black | 2.85:1 | Fails | Lc -16.6 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F4
oklch(93.7% 0.015 286.1)
-
Step 200
200
#D7D7EC
oklch(88.6% 0.029 285.8)
-
Step 300
300
#BDBCE1
oklch(80.8% 0.052 286.4)
-
Step 400
400
#9C99D3
oklch(70.7% 0.084 286.4)
-
Step 500
500
#857FC7
oklch(63.1% 0.107 286.7)
-
Step 600
600
#6F67B3
oklch(55.5% 0.116 286.8)
-
Step 700
700 (this color)
#554D91
oklch(46.1% 0.108 286.7)
-
Step 800
800
#4C467D
oklch(42.6% 0.089 287)
-
Step 900
900
#3F3B65
oklch(37.6% 0.071 286.8)
-
Step 950
950
#25233B
oklch(27% 0.044 286.9)
#554D91 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) | #345893 | 0.050 |
| Deuteranopia (no green cones) | #33548F | 0.048 |
| Tritanopia (no blue cones) | #445B68 | 0.092 |
| Achromatopsia (no color) | #565656 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554D91
#554D91
oklch(46.1% 0.108 286.7)
- #5F5B00
#5F5B00
oklch(46% 0.098 106.7)
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 #554D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.019
- Dusk #4E5481 ΔE 0.037
- Blueberry #464196 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.050
- Dusky Blue #475F94 ΔE 0.051
- Dusty Grape #545775 ΔE 0.060
- Dusk Blue #26538D ΔE 0.061
Use #554D91 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.