#3786A3
Closest named color: Teal Blue (#01889F). oklch(58.4% 0.088 225.6), rgb(55, 134, 163).
Aa
Black text reads best on this color (5.10:1).
About this color
#3786A3 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.088 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.023 away. Black text reads best on it, at 5.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #3786A3 |
| RGB | rgb(55, 134, 163) |
| HSL | hsl(196, 50%, 43%) |
| OKLCH | oklch(58.4% 0.088 225.6) |
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 #3786A3 | 4.11:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #3786A3 | 5.10:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #3786A3 text on white | 4.11:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #3786A3 text on black | 5.10:1 | AA | Lc -33.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CBDDE4
oklch(88.6% 0.022 223)
-
Step 300
300
#A6C7D4
oklch(81% 0.04 223.7)
-
Step 400
400
#75A9BF
oklch(70.6% 0.064 226.3)
-
Step 500
500
#4E94AF
oklch(63.2% 0.081 225.5)
-
Step 600
600 (this color)
#3786A3
oklch(58.4% 0.088 225.6)
-
Step 700
700
#1F6A84
oklch(49.1% 0.082 225.7)
-
Step 800
800
#1C566B
oklch(42.6% 0.068 226)
-
Step 900
900
#1E4757
oklch(37.6% 0.053 226.4)
-
Step 950
950
#132A33
oklch(27.1% 0.033 225.6)
#3786A3 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) | #7683A4 | 0.067 |
| Deuteranopia (no green cones) | #6778A3 | 0.059 |
| Tritanopia (no blue cones) | #008F8F | 0.052 |
| Achromatopsia (no color) | #7D7D7D | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3786A3
#3786A3
oklch(58.4% 0.088 225.6)
- #A76A4E
#A76A4E
oklch(58.4% 0.088 45.2)
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 #3786A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.023
- Blue NCS #118AB2 ΔE 0.026
- Cerulean #457B9D ΔE 0.031
- Stormy Blue #507B9C ΔE 0.035
- Steel Blue #4682B4 ΔE 0.035
- Off Blue #5684AE ΔE 0.035
- Dusty Blue #5A86AD ΔE 0.037
- Cool Blue #4984B8 ΔE 0.039
Use #3786A3 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.