#3365A1
Closest named color: Dusky Blue (#475F94). oklch(50.2% 0.11 254.4), rgb(51, 101, 161).
Aa
White text reads best on this color (5.97:1).
About this color
#3365A1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.110 and its hue 254°. 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 5.97:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #3365A1 |
| RGB | rgb(51, 101, 161) |
| HSL | hsl(213, 52%, 42%) |
| OKLCH | oklch(50.2% 0.11 254.4) |
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 #3365A1 | 5.97:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #3365A1 | 3.51:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #3365A1 text on white | 5.97:1 | AA | Lc 79.6 | Fine for body text |
| #3365A1 text on black | 3.51:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBED
oklch(88.6% 0.03 253)
-
Step 300
300
#AAC3E3
oklch(80.9% 0.053 254.7)
-
Step 400
400
#7CA3D5
oklch(70.6% 0.085 254.9)
-
Step 500
500
#598CCA
oklch(63.1% 0.109 254.1)
-
Step 600
600
#3E75B7
oklch(55.6% 0.119 254.3)
-
Step 700
700 (this color)
#3365A1
oklch(50.2% 0.11 254.4)
-
Step 800
800
#295080
oklch(42.7% 0.092 254.8)
-
Step 900
900
#254367
oklch(37.8% 0.072 254)
-
Step 950
950
#16273C
oklch(26.9% 0.046 254.4)
#3365A1 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) | #4A69A3 | 0.029 |
| Deuteranopia (no green cones) | #3A5FA0 | 0.017 |
| Tritanopia (no blue cones) | #00737B | 0.088 |
| Achromatopsia (no color) | #636363 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3365A1
#3365A1
oklch(50.2% 0.11 254.4)
- #875900
#875900
oklch(50.2% 0.106 74.3)
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 #3365A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.029
- Mid Blue #276AB3 ΔE 0.029
- French Blue #436BAD ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.033
- Denim #3B638C ΔE 0.033
- Peacock Blue #016795 ΔE 0.034
- Muted Blue #3B719F ΔE 0.038
- Ocean Blue #03719C ΔE 0.042
Use #3365A1 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.