#106CB5
Closest named color: Mid Blue (#276AB3). oklch(52.1% 0.139 249.5), rgb(16, 108, 181).
Aa
White text reads best on this color (5.47:1).
About this color
#106CB5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.139 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.011 away. White text reads best on it, at 5.47:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #106CB5 |
| RGB | rgb(16, 108, 181) |
| HSL | hsl(207, 84%, 39%) |
| OKLCH | oklch(52.1% 0.139 249.5) |
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 #106CB5 | 5.47:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #106CB5 | 3.83:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #106CB5 text on white | 5.47:1 | AA | Lc 76.8 | Fine for body text |
| #106CB5 text on black | 3.83:1 | AA large text | Lc -25.0 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#A0C5EB
oklch(81% 0.067 249.3)
-
Step 400
400
#6AA6E1
oklch(70.8% 0.107 249.2)
-
Step 500
500
#3D8ED9
oklch(63.2% 0.138 249.5)
-
Step 600
600
#1076C6
oklch(55.5% 0.15 249.6)
-
Step 700
700 (this color)
#106CB5
oklch(52.1% 0.139 249.5)
-
Step 800
800
#07518B
oklch(42.7% 0.116 249.6)
-
Step 900
900
#13446F
oklch(37.8% 0.09 249.2)
-
Step 950
950
#0D2841
oklch(27% 0.057 249.3)
#106CB5 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) | #4871B8 | 0.044 |
| Deuteranopia (no green cones) | #2C63B4 | 0.026 |
| Tritanopia (no blue cones) | #007E87 | 0.102 |
| Achromatopsia (no color) | #696969 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #106CB5
#106CB5
oklch(52.1% 0.139 249.5)
- #925B00
#925B00
oklch(52% 0.113 69.4)
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 #106CB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.011
- French Blue #436BAD ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.043
- Nice Blue #107AB0 ΔE 0.043
- Windows Blue #3778BF ΔE 0.046
- Ocean Blue #03719C ΔE 0.046
- Muted Blue #3B719F ΔE 0.048
- Peacock Blue #016795 ΔE 0.052
Use #106CB5 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.