#1B6EB7
Closest named color: Mid Blue (#276AB3). oklch(52.9% 0.137 250.3), rgb(27, 110, 183).
Aa
White text reads best on this color (5.30:1).
About this color
#1B6EB7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.137 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.012 away. White text reads best on it, at 5.30:1.
| 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 | 5.30:1 |
Values
| HEX | #1B6EB7 |
| RGB | rgb(27, 110, 183) |
| HSL | hsl(208, 74%, 41%) |
| OKLCH | oklch(52.9% 0.137 250.3) |
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 #1B6EB7 | 5.30:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #1B6EB7 | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #1B6EB7 text on white | 5.30:1 | AA | Lc 75.9 | Fine for body text |
| #1B6EB7 text on black | 3.96:1 | AA large text | Lc -25.8 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBF0
oklch(88.4% 0.035 252.3)
-
Step 300
300
#A3C4E8
oklch(80.8% 0.062 250.8)
-
Step 400
400
#70A5DC
oklch(70.7% 0.099 250.2)
-
Step 500
500
#488DD3
oklch(63% 0.127 250.8)
-
Step 600
600 (this color)
#1B6EB7
oklch(52.9% 0.137 250.3)
-
Step 700
700
#1763A6
oklch(49.1% 0.128 250.4)
-
Step 800
800
#175186
oklch(42.7% 0.106 250.3)
-
Step 900
900
#1A446B
oklch(37.8% 0.082 249.5)
-
Step 950
950
#11283F
oklch(27.1% 0.052 250.3)
#1B6EB7 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) | #4A73BA | 0.042 |
| Deuteranopia (no green cones) | #3165B6 | 0.026 |
| Tritanopia (no blue cones) | #008089 | 0.102 |
| Achromatopsia (no color) | #6B6B6B | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B6EB7
#1B6EB7
oklch(52.9% 0.137 250.3)
- #955E00
#955E00
oklch(53% 0.115 70.3)
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 #1B6EB7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.012
- French Blue #436BAD ΔE 0.031
- Windows Blue #3778BF ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.038
- Nice Blue #107AB0 ΔE 0.038
- Muted Blue #3B719F ΔE 0.045
- Ocean Blue #03719C ΔE 0.047
- Peacock Blue #016795 ΔE 0.057
Use #1B6EB7 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.