#3D85B8
Closest named color: Cool Blue (#4984B8). oklch(59.3% 0.106 242.4), rgb(61, 133, 184).
Aa
Black text reads best on this color (5.24:1).
About this color
#3D85B8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.106 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.010 away. Black text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #3D85B8 |
| RGB | rgb(61, 133, 184) |
| HSL | hsl(205, 50%, 48%) |
| OKLCH | oklch(59.3% 0.106 242.4) |
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 #3D85B8 | 4.00:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #3D85B8 | 5.24:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #3D85B8 text on white | 4.00:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #3D85B8 text on black | 5.24:1 | AA | Lc -34.6 | Non-text elements, placeholder text |
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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDCEA
oklch(88.6% 0.027 242.8)
-
Step 300
300
#A7C5DD
oklch(80.9% 0.047 242.4)
-
Step 400
400
#76A7CD
oklch(70.8% 0.077 242.4)
-
Step 500
500
#5090C0
oklch(63.1% 0.098 242.8)
-
Step 600
600 (this color)
#3D85B8
oklch(59.3% 0.106 242.4)
-
Step 700
700
#236694
oklch(49.1% 0.099 242.9)
-
Step 800
800
#1F5478
oklch(42.8% 0.082 242)
-
Step 900
900
#1F4561
oklch(37.6% 0.065 243)
-
Step 950
950
#132939
oklch(27.1% 0.041 242)
#3D85B8 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) | #6E86BA | 0.052 |
| Deuteranopia (no green cones) | #5D7AB7 | 0.041 |
| Tritanopia (no blue cones) | #009297 | 0.077 |
| Achromatopsia (no color) | #7F7F7F | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D85B8
#3D85B8
oklch(59.3% 0.106 242.4)
- #AB6F34
#AB6F34
oklch(59.4% 0.106 62.6)
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 #3D85B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.010
- Steel Blue #4682B4 ΔE 0.011
- Off Blue #5684AE ΔE 0.026
- Blue NCS #118AB2 ΔE 0.028
- Dusty Blue #5A86AD ΔE 0.032
- Water Blue #0E87CC ΔE 0.035
- Windows Blue #3778BF ΔE 0.042
- Cerulean #457B9D ΔE 0.044
Use #3D85B8 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.