#55669D
Closest named color: Dusky Blue (#475F94). oklch(52.1% 0.09 270), rgb(85, 102, 157).
Aa
White text reads best on this color (5.56:1).
About this color
#55669D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.090 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.031 away. White text reads best on it, at 5.56:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #55669D |
| RGB | rgb(85, 102, 157) |
| HSL | hsl(226, 30%, 47%) |
| OKLCH | oklch(52.1% 0.09 270) |
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 #55669D | 5.56:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #55669D | 3.77:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #55669D text on white | 5.56:1 | AA | Lc 77.7 | Fine for body text |
| #55669D text on black | 3.77:1 | AA large text | Lc -24.0 | 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
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300
#B5C0DE
oklch(80.9% 0.044 269.5)
-
Step 400
400
#909FCD
oklch(70.7% 0.07 270.5)
-
Step 500
500
#7487C0
oklch(63.1% 0.089 269.6)
-
Step 600
600
#5D70AC
oklch(55.6% 0.096 269.7)
-
Step 700
700 (this color)
#55669D
oklch(52.1% 0.09 270)
-
Step 800
800
#3F4C78
oklch(42.6% 0.075 270.5)
-
Step 900
900
#364061
oklch(37.8% 0.058 270.6)
-
Step 950
950
#1F2639
oklch(27.1% 0.037 268.4)
#55669D 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) | #526B9F | 0.014 |
| Deuteranopia (no green cones) | #4B659C | 0.014 |
| Tritanopia (no blue cones) | #3B717A | 0.080 |
| Achromatopsia (no color) | #686868 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55669D
#55669D
oklch(52.1% 0.09 270)
- #7D6623
#7D6623
oklch(52% 0.089 89.7)
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 #55669D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.031
- French Blue #436BAD ΔE 0.031
- Muted Blue #3B719F ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.042
- Denim #3B638C ΔE 0.044
- Dull Blue #49759C ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.050
- Metallic Blue #4F738E ΔE 0.051
Use #55669D 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.