#3787A2
Closest named color: Teal Blue (#01889F). oklch(58.6% 0.087 223.7), rgb(55, 135, 162).
Aa
Black text reads best on this color (5.14:1).
About this color
#3787A2 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.087 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.022 away. Black text reads best on it, at 5.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #3787A2 |
| RGB | rgb(55, 135, 162) |
| HSL | hsl(195, 49%, 43%) |
| OKLCH | oklch(58.6% 0.087 223.7) |
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 #3787A2 | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #3787A2 | 5.14:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #3787A2 text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #3787A2 text on black | 5.14:1 | AA | Lc -33.9 | 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
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE4
oklch(88.6% 0.022 223)
-
Step 300
300
#A6C7D3
oklch(80.9% 0.039 221.9)
-
Step 400
400
#75AABE
oklch(70.8% 0.063 223.6)
-
Step 500
500
#4E94AD
oklch(63.1% 0.08 223.6)
-
Step 600
600 (this color)
#3787A2
oklch(58.6% 0.087 223.7)
-
Step 700
700
#1E6A82
oklch(49% 0.081 223.6)
-
Step 800
800
#1C576A
oklch(42.8% 0.067 223.2)
-
Step 900
900
#1E4856
oklch(37.8% 0.052 222.7)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#3787A2 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) | #7884A3 | 0.069 |
| Deuteranopia (no green cones) | #6979A2 | 0.061 |
| Tritanopia (no blue cones) | #008F90 | 0.047 |
| Achromatopsia (no color) | #7E7E7E | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3787A2
#3787A2
oklch(58.6% 0.087 223.7)
- #A76B51
#A76B51
oklch(58.6% 0.086 44.1)
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 #3787A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.022
- Blue NCS #118AB2 ΔE 0.027
- Cerulean #457B9D ΔE 0.034
- Off Blue #5684AE ΔE 0.037
- Stormy Blue #507B9C ΔE 0.037
- Steel Blue #4682B4 ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.038
- Cool Blue #4984B8 ΔE 0.042
Use #3787A2 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.