#3A5AA1
Closest named color: Denim Blue (#3B5B92). oklch(48% 0.121 264.1), rgb(58, 90, 161).
Aa
White text reads best on this color (6.65:1).
About this color
#3A5AA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.121 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.025 away. White text reads best on it, at 6.65:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #3A5AA1 |
| RGB | rgb(58, 90, 161) |
| HSL | hsl(221, 47%, 43%) |
| OKLCH | oklch(48% 0.121 264.1) |
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 #3A5AA1 | 6.65:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #3A5AA1 | 3.15:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #3A5AA1 text on white | 6.65:1 | AA | Lc 82.6 | Fine for body text |
| #3A5AA1 text on black | 3.15:1 | AA large text | Lc -19.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9EF
oklch(88.4% 0.033 264.4)
-
Step 300
300
#AEC1E7
oklch(80.9% 0.058 264.2)
-
Step 400
400
#83A0DB
oklch(70.7% 0.093 264)
-
Step 500
500
#6487D2
oklch(63% 0.12 264.3)
-
Step 600
600
#4C70BF
oklch(55.7% 0.13 264.2)
-
Step 700
700 (this color)
#3A5AA1
oklch(48% 0.121 264.1)
-
Step 800
800
#324C85
oklch(42.5% 0.1 264.1)
-
Step 900
900
#2C406B
oklch(37.7% 0.078 264.1)
-
Step 950
950
#1A263F
oklch(27.1% 0.05 263.9)
#3A5AA1 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) | #3961A4 | 0.019 |
| Deuteranopia (no green cones) | #2958A0 | 0.019 |
| Tritanopia (no blue cones) | #006A75 | 0.102 |
| Achromatopsia (no color) | #5C5C5C | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A5AA1
#3A5AA1
oklch(48% 0.121 264.1)
- #785800
#785800
oklch(48.1% 0.099 84)
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 #3A5AA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.025
- Dusky Blue #475F94 ΔE 0.032
- Dusk Blue #26538D ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.044
- Twilight #4E518B ΔE 0.044
- Denim #3B638C ΔE 0.047
- Mid Blue #276AB3 ΔE 0.048
- French Blue #436BAD ΔE 0.051
Use #3A5AA1 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.