#3B6ABB
Closest named color: Mid Blue (#276AB3). oklch(53.3% 0.137 260.5), rgb(59, 106, 187).
Aa
White text reads best on this color (5.29:1).
About this color
#3B6ABB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.137 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.021 away. White text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #3B6ABB |
| RGB | rgb(59, 106, 187) |
| HSL | hsl(218, 52%, 48%) |
| OKLCH | oklch(53.3% 0.137 260.5) |
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 #3B6ABB | 5.29:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #3B6ABB | 3.96:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #3B6ABB text on white | 5.29:1 | AA | Lc 76.0 | Fine for body text |
| #3B6ABB text on black | 3.96:1 | AA large text | Lc -25.7 | 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 600.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAF0
oklch(88.5% 0.034 259.4)
-
Step 300
300
#AAC2E9
oklch(80.9% 0.061 260.1)
-
Step 400
400
#7DA1DE
oklch(70.6% 0.098 260.7)
-
Step 500
500
#5C89D5
oklch(63.2% 0.125 260.4)
-
Step 600
600 (this color)
#3B6ABB
oklch(53.3% 0.137 260.5)
-
Step 700
700
#335EA8
oklch(49% 0.128 260.5)
-
Step 800
800
#2B4D88
oklch(42.6% 0.106 260.6)
-
Step 900
900
#27416D
oklch(37.8% 0.082 260.3)
-
Step 950
950
#172640
oklch(27% 0.053 260.8)
#3B6ABB 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) | #4372BE | 0.025 |
| Deuteranopia (no green cones) | #2E66B9 | 0.017 |
| Tritanopia (no blue cones) | #007D89 | 0.112 |
| Achromatopsia (no color) | #6B6B6B | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B6ABB
#3B6ABB
oklch(53.3% 0.137 260.5)
- #8D6400
#8D6400
oklch(53.2% 0.11 80.4)
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 #3B6ABB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.021
- French Blue #436BAD ΔE 0.024
- Windows Blue #3778BF ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.043
- Muted Blue #3B719F ΔE 0.053
- Nice Blue #107AB0 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.064
Use #3B6ABB 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.