#3A4476
Closest named color: Twilight Blue (#0A437A). oklch(40.3% 0.085 273.5), rgb(58, 68, 118).
Aa
White text reads best on this color (9.25:1).
About this color
#3A4476 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.085 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.047 away. White text reads best on it, at 9.25:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #3A4476 |
| RGB | rgb(58, 68, 118) |
| HSL | hsl(230, 34%, 35%) |
| OKLCH | oklch(40.3% 0.085 273.5) |
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 #3A4476 | 9.25:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #3A4476 | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #3A4476 text on white | 9.25:1 | AAA | Lc 91.2 | Preferred for body text |
| #3A4476 text on black | 2.26:1 | Fails | Lc -11.1 | 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
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300
#B6BFE1
oklch(80.9% 0.049 273.6)
-
Step 400
400
#909ED3
oklch(70.8% 0.079 272.8)
-
Step 500
500
#7685C7
oklch(63.2% 0.101 273.4)
-
Step 600
600
#5F6DB4
oklch(55.6% 0.111 273.8)
-
Step 700
700
#4E5B9B
oklch(49.1% 0.104 273.3)
-
Step 800
800 (this color)
#3A4476
oklch(40.3% 0.085 273.5)
-
Step 900
900
#363F65
oklch(37.8% 0.066 272.7)
-
Step 950
950
#20253B
oklch(27.1% 0.042 273.5)
#3A4476 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) | #314A78 | 0.019 |
| Deuteranopia (no green cones) | #2B4575 | 0.020 |
| Tritanopia (no blue cones) | #224F57 | 0.077 |
| Achromatopsia (no color) | #474747 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4476
#3A4476
oklch(40.3% 0.085 273.5)
- #584700
#584700
oklch(40.4% 0.083 93.2)
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 #3A4476, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.047
- Light Navy #155084 ΔE 0.048
- Cobalt #1E488F ΔE 0.049
- Dusk Blue #26538D ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.058
- Blueberry #464196 ΔE 0.058
Use #3A4476 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.