#3B4B9D
Closest named color: Blueberry (#464196). oklch(44.6% 0.134 271.6), rgb(59, 75, 157).
Aa
White text reads best on this color (7.83:1).
About this color
#3B4B9D is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.134 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.029 away. White text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.67:1 |
| White text | 7.83:1 |
Values
| HEX | #3B4B9D |
| RGB | rgb(59, 75, 157) |
| HSL | hsl(230, 45%, 42%) |
| OKLCH | oklch(44.6% 0.134 271.6) |
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 #3B4B9D | 7.83:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #3B4B9D | 2.67:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #3B4B9D text on white | 7.83:1 | AAA | Lc 86.9 | Fine for body text |
| #3B4B9D text on black | 2.67:1 | Fails | Lc -15.2 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#AEBEF4
oklch(80.8% 0.079 271.7)
-
Step 400
400
#859BEF
oklch(70.7% 0.126 271.7)
-
Step 500
500
#6880E9
oklch(63.2% 0.159 271.5)
-
Step 600
600
#5166D7
oklch(55.5% 0.174 271.7)
-
Step 700
700
#4254BB
oklch(49% 0.163 271.6)
-
Step 800
800 (this color)
#3B4B9D
oklch(44.6% 0.134 271.6)
-
Step 900
900
#2F3B78
oklch(37.6% 0.104 272.1)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#3B4B9D 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) | #1C56A0 | 0.037 |
| Deuteranopia (no green cones) | #004E9B | 0.043 |
| Tritanopia (no blue cones) | #005E6C | 0.116 |
| Achromatopsia (no color) | #525252 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4B9D
#3B4B9D
oklch(44.6% 0.134 271.6)
- #665200
#665200
oklch(44.6% 0.091 92.5)
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 #3B4B9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.029
- Cobalt #1E488F ΔE 0.041
- Dusk Blue #26538D ΔE 0.042
- Twilight #4E518B ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.051
- Light Navy #155084 ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.060
Use #3B4B9D 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.