#3A487A
Closest named color: Light Navy (#155084). oklch(41.4% 0.086 270.5), rgb(58, 72, 122).
Aa
White text reads best on this color (8.79:1).
About this color
#3A487A is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.086 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.040 away. White text reads best on it, at 8.79:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #3A487A |
| RGB | rgb(58, 72, 122) |
| HSL | hsl(227, 36%, 35%) |
| OKLCH | oklch(41.4% 0.086 270.5) |
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 #3A487A | 8.79:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #3A487A | 2.38:1 | Fails | Lc 14.0 | Not readable |
| #3A487A text on white | 8.79:1 | AAA | Lc 90.0 | Fine for body text |
| #3A487A text on black | 2.38:1 | Fails | Lc -12.3 | Not readable |
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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EC
oklch(88.6% 0.027 269.6)
-
Step 300
300
#B4C0E2
oklch(81% 0.05 269.9)
-
Step 400
400
#8D9ED3
oklch(70.6% 0.08 270.5)
-
Step 500
500
#7286C8
oklch(63.2% 0.102 270.4)
-
Step 600
600
#5B6FB4
oklch(55.7% 0.11 270.3)
-
Step 700
700
#4B5C9B
oklch(49.1% 0.103 270.8)
-
Step 800
800 (this color)
#3A487A
oklch(41.4% 0.086 270.5)
-
Step 900
900
#343F65
oklch(37.6% 0.067 270.7)
-
Step 950
950
#1F253B
oklch(27% 0.042 271.7)
#3A487A 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) | #344D7C | 0.015 |
| Deuteranopia (no green cones) | #2E4879 | 0.016 |
| Tritanopia (no blue cones) | #1F535B | 0.077 |
| Achromatopsia (no color) | #4A4A4A | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A487A
#3A487A
oklch(41.4% 0.086 270.5)
- #5D4900
#5D4900
oklch(41.5% 0.085 90.7)
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 #3A487A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.040
- Dusk Blue #26538D ΔE 0.043
- Cobalt #1E488F ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.048
- Twilight #4E518B ΔE 0.048
- Dusk #4E5481 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.050
Use #3A487A 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.