#3A5491
Closest named color: Denim Blue (#3B5B92). oklch(45.6% 0.105 265.1), rgb(58, 84, 145).
Aa
White text reads best on this color (7.35:1).
About this color
#3A5491 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.105 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.020 away. White text reads best on it, at 7.35:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #3A5491 |
| RGB | rgb(58, 84, 145) |
| HSL | hsl(222, 43%, 40%) |
| OKLCH | oklch(45.6% 0.105 265.1) |
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 #3A5491 | 7.35:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #3A5491 | 2.85:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #3A5491 text on white | 7.35:1 | AAA | Lc 85.4 | Fine for body text |
| #3A5491 text on black | 2.85:1 | Fails | Lc -16.7 | 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 800.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9F0
oklch(88.4% 0.034 265.2)
-
Step 300
300
#ADC1E9
oklch(80.9% 0.061 264.2)
-
Step 400
400
#839FDE
oklch(70.6% 0.098 265.6)
-
Step 500
500
#6487D5
oklch(63.2% 0.124 264.8)
-
Step 600
600
#4C6FC2
oklch(55.6% 0.135 265.1)
-
Step 700
700
#3D5CA8
oklch(49.1% 0.127 265.3)
-
Step 800
800 (this color)
#3A5491
oklch(45.6% 0.105 265.1)
-
Step 900
900
#2C406D
oklch(37.8% 0.081 264.7)
-
Step 950
950
#1A2540
oklch(26.9% 0.053 266.2)
#3A5491 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) | #3A5A93 | 0.017 |
| Deuteranopia (no green cones) | #2E5290 | 0.016 |
| Tritanopia (no blue cones) | #00626B | 0.093 |
| Achromatopsia (no color) | #565656 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A5491
#3A5491
oklch(45.6% 0.105 265.1)
- #6F5200
#6F5200
oklch(45.7% 0.094 84.9)
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 #3A5491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.020
- Dusk Blue #26538D ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.028
- Twilight #4E518B ΔE 0.028
- Dusk #4E5481 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.038
- Light Navy #155084 ΔE 0.044
- Denim #3B638C ΔE 0.047
Use #3A5491 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.