#3561A3
Closest named color: Dusky Blue (#475F94). oklch(49.4% 0.117 258.4), rgb(53, 97, 163).
Aa
White text reads best on this color (6.19:1).
About this color
#3561A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.117 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.029 away. White text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.39:1 |
| White text | 6.19:1 |
Values
| HEX | #3561A3 |
| RGB | rgb(53, 97, 163) |
| HSL | hsl(216, 51%, 42%) |
| OKLCH | oklch(49.4% 0.117 258.4) |
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 #3561A3 | 6.19:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #3561A3 | 3.39:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #3561A3 text on white | 6.19:1 | AA | Lc 80.6 | Fine for body text |
| #3561A3 text on black | 3.39:1 | AA large text | Lc -21.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#ABC2E6
oklch(80.9% 0.057 259.3)
-
Step 400
400
#7EA2D9
oklch(70.7% 0.09 258.7)
-
Step 500
500
#5D8ACF
oklch(63.1% 0.116 258.7)
-
Step 600
600
#4273BC
oklch(55.6% 0.126 258.2)
-
Step 700
700 (this color)
#3561A3
oklch(49.4% 0.117 258.4)
-
Step 800
800
#2C4F83
oklch(42.8% 0.096 258.2)
-
Step 900
900
#274269
oklch(37.7% 0.075 257.6)
-
Step 950
950
#17273E
oklch(27.1% 0.048 257.5)
#3561A3 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) | #4367A6 | 0.024 |
| Deuteranopia (no green cones) | #325CA2 | 0.015 |
| Tritanopia (no blue cones) | #00707A | 0.094 |
| Achromatopsia (no color) | #616161 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3561A3
#3561A3
oklch(49.4% 0.117 258.4)
- #815900
#815900
oklch(49.4% 0.103 78.3)
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 #3561A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.029
- Mid Blue #276AB3 ΔE 0.032
- French Blue #436BAD ΔE 0.036
- Denim #3B638C ΔE 0.039
- Peacock Blue #016795 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.047
- Muted Blue #3B719F ΔE 0.050
Use #3561A3 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.