#55608E
Closest named color: Dusky Blue (#475F94). oklch(50% 0.075 273.1), rgb(85, 96, 142).
Aa
White text reads best on this color (6.08:1).
About this color
#55608E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.075 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.021 away. White text reads best on it, at 6.08:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.45:1 |
| White text | 6.08:1 |
Values
| HEX | #55608E |
| RGB | rgb(85, 96, 142) |
| HSL | hsl(228, 25%, 45%) |
| OKLCH | oklch(50% 0.075 273.1) |
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 #55608E | 6.08:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #55608E | 3.45:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #55608E text on white | 6.08:1 | AA | Lc 80.4 | Fine for body text |
| #55608E text on black | 3.45:1 | AA large text | Lc -21.5 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D4D9E7
oklch(88.6% 0.02 270.2)
-
Step 300
300
#B9C0D9
oklch(81% 0.036 273.2)
-
Step 400
400
#949FC5
oklch(70.7% 0.057 272.3)
-
Step 500
500
#7A87B7
oklch(63.1% 0.074 272.4)
-
Step 600
600
#6470A3
oklch(55.6% 0.081 273.4)
-
Step 700
700 (this color)
#55608E
oklch(50% 0.075 273.1)
-
Step 800
800
#444D71
oklch(42.8% 0.061 272.8)
-
Step 900
900
#39405B
oklch(37.7% 0.047 272.8)
-
Step 950
950
#212536
oklch(26.9% 0.032 273.8)
#55608E 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) | #516590 | 0.014 |
| Deuteranopia (no green cones) | #4C608D | 0.013 |
| Tritanopia (no blue cones) | #436970 | 0.067 |
| Achromatopsia (no color) | #626262 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55608E
#55608E
oklch(50% 0.075 273.1)
- #72622D
#72622D
oklch(50% 0.075 92.7)
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 #55608E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.021
- Denim #3B638C ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.039
- Dusk #4E5481 ΔE 0.039
- Dusty Grape #545775 ΔE 0.043
- Twilight #4E518B ΔE 0.045
- YInMn Blue #415A77 ΔE 0.049
- Slate #516572 ΔE 0.053
Use #55608E 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.