#3A4A99
Closest named color: Blueberry (#464196). oklch(44% 0.13 271.5), rgb(58, 74, 153).
Aa
White text reads best on this color (8.01:1).
About this color
#3A4A99 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.130 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.027 away. White text reads best on it, at 8.01:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.61:1 |
| White text | 8.01:1 |
Values
| HEX | #3A4A99 |
| RGB | rgb(58, 74, 153) |
| HSL | hsl(230, 45%, 41%) |
| OKLCH | oklch(44% 0.13 271.5) |
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 #3A4A99 | 8.01:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #3A4A99 | 2.61:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #3A4A99 text on white | 8.01:1 | AAA | Lc 87.5 | Fine for body text |
| #3A4A99 text on black | 2.61:1 | Fails | Lc -14.6 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBEF2
oklch(80.8% 0.076 272.1)
-
Step 400
400
#859BEC
oklch(70.6% 0.121 271.5)
-
Step 500
500
#6980E6
oklch(63% 0.155 271.7)
-
Step 600
600
#5267D4
oklch(55.5% 0.168 271.7)
-
Step 700
700
#4355B8
oklch(49.1% 0.157 271.7)
-
Step 800
800 (this color)
#3A4A99
oklch(44% 0.13 271.5)
-
Step 900
900
#2F3C77
oklch(37.8% 0.101 271.4)
-
Step 950
950
#1B2345
oklch(26.8% 0.064 271.5)
#3A4A99 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) | #1E559C | 0.036 |
| Deuteranopia (no green cones) | #064C97 | 0.041 |
| Tritanopia (no blue cones) | #005C6A | 0.112 |
| Achromatopsia (no color) | #505050 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4A99
#3A4A99
oklch(44% 0.13 271.5)
- #655000
#655000
oklch(44% 0.09 91.3)
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 #3A4A99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.027
- Cobalt #1E488F ΔE 0.036
- Dusk Blue #26538D ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.041
- Twilight #4E518B ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.051
- Light Navy #155084 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.058
Use #3A4A99 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.