#554D88
Closest named color: Twilight (#4E518B). oklch(45.6% 0.094 288.3), rgb(85, 77, 136).
Aa
White text reads best on this color (7.49:1).
About this color
#554D88 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.094 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.015 away. White text reads best on it, at 7.49:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #554D88 |
| RGB | rgb(85, 77, 136) |
| HSL | hsl(248, 28%, 42%) |
| OKLCH | oklch(45.6% 0.094 288.3) |
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 #554D88 | 7.49:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #554D88 | 2.80:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #554D88 text on white | 7.49:1 | AAA | Lc 85.9 | Fine for body text |
| #554D88 text on black | 2.80:1 | Fails | Lc -16.1 | 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 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
#BEBCE3
oklch(81% 0.055 287.5)
-
Step 400
400
#9E98D5
oklch(70.7% 0.088 288.4)
-
Step 500
500
#877DCA
oklch(63.1% 0.114 288.6)
-
Step 600
600
#7166B6
oklch(55.7% 0.122 288.1)
-
Step 700
700
#5F549D
oklch(49.1% 0.114 288.4)
-
Step 800
800 (this color)
#554D88
oklch(45.6% 0.094 288.3)
-
Step 900
900
#403A66
oklch(37.6% 0.074 288.6)
-
Step 950
950
#25223C
oklch(26.9% 0.048 288)
#554D88 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) | #39568A | 0.044 |
| Deuteranopia (no green cones) | #395387 | 0.042 |
| Tritanopia (no blue cones) | #485864 | 0.078 |
| Achromatopsia (no color) | #555555 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554D88
#554D88
oklch(45.6% 0.094 288.3)
- #5C5A09
#5C5A09
oklch(45.5% 0.094 108.1)
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 #554D88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.015
- Dusk #4E5481 ΔE 0.027
- Dusty Grape #545775 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.049
- Blueberry #464196 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.051
- Dusky Blue #475F94 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.059
Use #554D88 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.