#554B81
Closest named color: Twilight (#4E518B). oklch(44.7% 0.087 291), rgb(85, 75, 129).
Aa
White text reads best on this color (7.74:1).
About this color
#554B81 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.087 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.022 away. White text reads best on it, at 7.74:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.70:1 |
| White text | 7.74:1 |
Values
| HEX | #554B81 |
| RGB | rgb(85, 75, 129) |
| HSL | hsl(251, 26%, 40%) |
| OKLCH | oklch(44.7% 0.087 291) |
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 #554B81 | 7.74:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #554B81 | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #554B81 text on white | 7.74:1 | AAA | Lc 86.8 | Fine for body text |
| #554B81 text on black | 2.70:1 | Fails | Lc -15.3 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D9D6EB
oklch(88.5% 0.029 292.4)
-
Step 300
300
#C0BBE0
oklch(80.8% 0.052 291.4)
-
Step 400
400
#A098D0
oklch(70.7% 0.081 290.7)
-
Step 500
500
#8A7EC4
oklch(63.2% 0.104 291)
-
Step 600
600
#7466B0
oklch(55.6% 0.113 291)
-
Step 700
700
#615497
oklch(48.9% 0.105 290.9)
-
Step 800
800 (this color)
#554B81
oklch(44.7% 0.087 291)
-
Step 900
900
#423B63
oklch(37.8% 0.067 290.8)
-
Step 950
950
#26233A
oklch(27.1% 0.042 289.2)
#554B81 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) | #3A5383 | 0.042 |
| Deuteranopia (no green cones) | #3B5180 | 0.040 |
| Tritanopia (no blue cones) | #4A5560 | 0.072 |
| Achromatopsia (no color) | #535353 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554B81
#554B81
oklch(44.7% 0.087 291)
- #575915
#575915
oklch(44.8% 0.088 111.1)
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 #554B81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.022
- Dusk #4E5481 ΔE 0.027
- Dusty Grape #545775 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.051
- Blueberry #464196 ΔE 0.054
- Denim Blue #3B5B92 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.057
- Dusky Blue #475F94 ΔE 0.059
Use #554B81 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.