#0B6DD3
Closest named color: Royal Blue (#4169E1). oklch(54.3% 0.177 255.5), rgb(11, 109, 211).
Aa
White text reads best on this color (5.06:1).
About this color
#0B6DD3 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.177 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.040 away. White text reads best on it, at 5.06:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #0B6DD3 |
| RGB | rgb(11, 109, 211) |
| HSL | hsl(211, 90%, 44%) |
| OKLCH | oklch(54.3% 0.177 255.5) |
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 #0B6DD3 | 5.06:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #0B6DD3 | 4.14:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #0B6DD3 text on white | 5.06:1 | AA | Lc 74.3 | Content text, not long reading |
| #0B6DD3 text on black | 4.14:1 | AA large text | Lc -27.4 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9FC3F4
oklch(80.8% 0.08 256.2)
-
Step 400
400
#68A3EE
oklch(70.7% 0.127 255.1)
-
Step 500
500
#3C89E9
oklch(63% 0.163 255.6)
-
Step 600
600 (this color)
#0B6DD3
oklch(54.3% 0.177 255.5)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#094D97
oklch(42.7% 0.136 255.5)
-
Step 900
900
#134178
oklch(37.7% 0.106 255.4)
-
Step 950
950
#0D2746
oklch(27.1% 0.066 254.6)
#0B6DD3 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) | #2F77D7 | 0.035 |
| Deuteranopia (no green cones) | #0067D1 | 0.017 |
| Tritanopia (no blue cones) | #008696 | 0.132 |
| Achromatopsia (no color) | #6E6E6E | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B6DD3
#0B6DD3
oklch(54.3% 0.177 255.5)
- #966400
#966400
oklch(54.3% 0.115 74.8)
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 #0B6DD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.040
- Cerulean Blue #056EEE ΔE 0.041
- Mid Blue #276AB3 ΔE 0.050
- Windows Blue #3778BF ΔE 0.053
- Azul #1D5DEC ΔE 0.056
- Neon Blue #4361EE ΔE 0.060
- Warm Blue #4B57DB ΔE 0.065
- French Blue #436BAD ΔE 0.065
Use #0B6DD3 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.