#3552A6
Closest named color: Dusk Blue (#26538D). oklch(46.3% 0.14 266.6), rgb(53, 82, 166).
Aa
White text reads best on this color (7.21:1).
About this color
#3552A6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.140 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.045 away. White text reads best on it, at 7.21:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.90:1 |
| White text | 7.21:1 |
Values
| HEX | #3552A6 |
| RGB | rgb(53, 82, 166) |
| HSL | hsl(225, 52%, 43%) |
| OKLCH | oklch(46.3% 0.14 266.6) |
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 #3552A6 | 7.21:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #3552A6 | 2.90:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #3552A6 text on white | 7.21:1 | AAA | Lc 84.7 | Fine for body text |
| #3552A6 text on black | 2.90:1 | Fails | Lc -17.3 | 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 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#ADC0ED
oklch(80.9% 0.067 267)
-
Step 400
400
#829EE4
oklch(70.6% 0.108 267)
-
Step 500
500
#6385DD
oklch(63.2% 0.138 266.6)
-
Step 600
600
#4B6DCA
oklch(55.7% 0.149 266.5)
-
Step 700
700 (this color)
#3552A6
oklch(46.3% 0.14 266.6)
-
Step 800
800
#324A8E
oklch(42.7% 0.116 266.8)
-
Step 900
900
#2B3F71
oklch(37.8% 0.089 265.9)
-
Step 950
950
#1A2542
oklch(27% 0.056 266.9)
#3552A6 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) | #225DA9 | 0.031 |
| Deuteranopia (no green cones) | #0052A4 | 0.034 |
| Tritanopia (no blue cones) | #006674 | 0.115 |
| Achromatopsia (no color) | #575757 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3552A6
#3552A6
oklch(46.3% 0.14 266.6)
- #705400
#705400
oklch(46.2% 0.095 86.2)
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 #3552A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.045
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.053
- Cobalt #1E488F ΔE 0.053
- Dusky Blue #475F94 ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.058
- Light Navy #155084 ΔE 0.064
Use #3552A6 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.