#3A5387
Closest named color: Light Navy Blue (#2E5A88). oklch(44.8% 0.091 263.7), rgb(58, 83, 135).
Aa
White text reads best on this color (7.58:1).
About this color
#3A5387 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.091 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.022 away. White text reads best on it, at 7.58:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.76:1 |
| White text | 7.58:1 |
Values
| HEX | #3A5387 |
| RGB | rgb(58, 83, 135) |
| HSL | hsl(221, 40%, 38%) |
| OKLCH | oklch(44.8% 0.091 263.7) |
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 #3A5387 | 7.58:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #3A5387 | 2.76:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #3A5387 text on white | 7.58:1 | AAA | Lc 86.2 | Fine for body text |
| #3A5387 text on black | 2.76:1 | Fails | Lc -15.8 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#CFD9ED
oklch(88.4% 0.03 264.4)
-
Step 300
300
#AFC1E4
oklch(80.9% 0.053 263.7)
-
Step 400
400
#85A0D6
oklch(70.6% 0.085 263.8)
-
Step 500
500
#6788CB
oklch(63% 0.108 263.6)
-
Step 600
600
#4F71B8
oklch(55.6% 0.118 263.7)
-
Step 700
700
#405E9F
oklch(49.1% 0.11 264.1)
-
Step 800
800 (this color)
#3A5387
oklch(44.8% 0.091 263.7)
-
Step 900
900
#2E4167
oklch(37.8% 0.07 263.2)
-
Step 950
950
#1B263C
oklch(27% 0.044 263.4)
#3A5387 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) | #3E5889 | 0.016 |
| Deuteranopia (no green cones) | #345186 | 0.010 |
| Tritanopia (no blue cones) | #0A5E66 | 0.082 |
| Achromatopsia (no color) | #545454 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A5387
#3A5387
oklch(44.8% 0.091 263.7)
- #6C4F02
#6C4F02
oklch(44.7% 0.091 83.8)
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 #3A5387, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.022
- Dusk Blue #26538D ΔE 0.022
- Denim Blue #3B5B92 ΔE 0.027
- Twilight #4E518B ΔE 0.029
- Dusk #4E5481 ΔE 0.029
- Light Navy #155084 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.042
Use #3A5387 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.