#556290
Closest named color: Dusky Blue (#475F94). oklch(50.5% 0.075 271.4), rgb(85, 98, 144).
Aa
White text reads best on this color (5.93:1).
About this color
#556290 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.075 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.023 away. White text reads best on it, at 5.93:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.53:1 |
| White text | 5.93:1 |
Values
| HEX | #556290 |
| RGB | rgb(85, 98, 144) |
| HSL | hsl(227, 26%, 45%) |
| OKLCH | oklch(50.5% 0.075 271.4) |
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 #556290 | 5.93:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #556290 | 3.53:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #556290 text on white | 5.93:1 | AA | Lc 79.6 | Fine for body text |
| #556290 text on black | 3.53:1 | AA large text | Lc -22.2 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E7
oklch(88.6% 0.02 270.2)
-
Step 300
300
#B8C0D9
oklch(81% 0.036 271.5)
-
Step 400
400
#939FC6
oklch(70.7% 0.059 271.5)
-
Step 500
500
#7987B7
oklch(63.1% 0.074 271.6)
-
Step 600
600
#6270A3
oklch(55.5% 0.081 271.8)
-
Step 700
700 (this color)
#556290
oklch(50.5% 0.075 271.4)
-
Step 800
800
#434D71
oklch(42.7% 0.061 271.7)
-
Step 900
900
#38405C
oklch(37.7% 0.049 271.6)
-
Step 950
950
#212636
oklch(27.1% 0.031 270.8)
#556290 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) | #526692 | 0.011 |
| Deuteranopia (no green cones) | #4D618F | 0.012 |
| Tritanopia (no blue cones) | #426B72 | 0.068 |
| Achromatopsia (no color) | #646464 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556290
#556290
oklch(50.5% 0.075 271.4)
- #74632E
#74632E
oklch(50.4% 0.075 91.8)
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 #556290, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.023
- Denim #3B638C ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.042
- Dusk #4E5481 ΔE 0.045
- Dusty Grape #545775 ΔE 0.048
- Muted Blue #3B719F ΔE 0.049
- French Blue #436BAD ΔE 0.050
- Twilight #4E518B ΔE 0.050
Use #556290 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.