#3B4EB0
Closest named color: Blueberry (#464196). oklch(46.6% 0.157 270.8), rgb(59, 78, 176).
Aa
White text reads best on this color (7.23:1).
About this color
#3B4EB0 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.157 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.052 away. White text reads best on it, at 7.23:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #3B4EB0 |
| RGB | rgb(59, 78, 176) |
| HSL | hsl(230, 50%, 46%) |
| OKLCH | oklch(46.6% 0.157 270.8) |
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 #3B4EB0 | 7.23:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #3B4EB0 | 2.90:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #3B4EB0 text on white | 7.23:1 | AAA | Lc 84.7 | Fine for body text |
| #3B4EB0 text on black | 2.90:1 | Fails | Lc -17.3 | 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 700.
-
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
#CED8F6
oklch(88.4% 0.043 270.9)
-
Step 300
300
#AEBFF3
oklch(81% 0.076 270.6)
-
Step 400
400
#849CEC
oklch(70.7% 0.121 270.4)
-
Step 500
500
#6781E6
oklch(63.1% 0.154 270.6)
-
Step 600
600
#5068D5
oklch(55.7% 0.169 270.7)
-
Step 700
700 (this color)
#3B4EB0
oklch(46.6% 0.157 270.8)
-
Step 800
800
#364795
oklch(42.8% 0.129 270.8)
-
Step 900
900
#2E3C77
oklch(37.7% 0.102 270.8)
-
Step 950
950
#1B2446
oklch(27.1% 0.064 270.5)
#3B4EB0 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) | #005CB3 | 0.046 |
| Deuteranopia (no green cones) | #0052AE | 0.040 |
| Tritanopia (no blue cones) | #006677 | 0.131 |
| Achromatopsia (no color) | #575757 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4EB0
#3B4EB0
oklch(46.6% 0.157 270.8)
- #6E5700
#6E5700
oklch(46.7% 0.095 90.9)
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 #3B4EB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.052
- Blue Blue #2242C7 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Majorelle Blue #3F37C9 ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.064
- Dusk Blue #26538D ΔE 0.065
- Cobalt #1E488F ΔE 0.066
- Sapphire #2138AB ΔE 0.066
Use #3B4EB0 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.