#3D9399
Closest named color: Teal Green (#0A9396). oklch(61.4% 0.082 201.6), rgb(61, 147, 153).
Aa
Black text reads best on this color (5.83:1).
About this color
#3D9399 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.082 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.023 away. Black text reads best on it, at 5.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.83:1 |
| White text | 3.60:1 |
Values
| HEX | #3D9399 |
| RGB | rgb(61, 147, 153) |
| HSL | hsl(184, 43%, 42%) |
| OKLCH | oklch(61.4% 0.082 201.6) |
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 #3D9399 | 3.60:1 | AA large text | Lc -68.9 | Content text, not long reading |
| Black text on #3D9399 | 5.83:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #3D9399 text on white | 3.60:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #3D9399 text on black | 5.83:1 | AA | Lc -38.3 | 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 500.
-
Step 50
50
#F2F7F7
oklch(97.2% 0.005 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A3C9CB
oklch(80.9% 0.04 200.3)
-
Step 400
400
#6FADB1
oklch(70.7% 0.064 201)
-
Step 500
500 (this color)
#3D9399
oklch(61.4% 0.082 201.6)
-
Step 600
600
#188389
oklch(55.7% 0.089 200.9)
-
Step 700
700
#026E74
oklch(49% 0.083 201.5)
-
Step 800
800
#0D5A5F
oklch(42.7% 0.069 201.8)
-
Step 900
900
#174A4D
oklch(37.7% 0.053 200.7)
-
Step 950
950
#0F2B2D
oklch(26.9% 0.034 201.6)
#3D9399 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) | #898D9A | 0.084 |
| Deuteranopia (no green cones) | #7A8299 | 0.077 |
| Tritanopia (no blue cones) | #009895 | 0.028 |
| Achromatopsia (no color) | #878787 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9399
#3D9399
oklch(61.4% 0.082 201.6)
- #B0706E
#B0706E
oklch(61.3% 0.082 21.7)
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 #3D9399, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.023
- Sea #3C9992 ΔE 0.024
- Dusty Teal #4C9085 ΔE 0.029
- Blue Green #0F9B8E ΔE 0.039
- Persian Green #2A9D8F ΔE 0.039
- Dark Cyan #008B8B ΔE 0.042
- Teal Blue #01889F ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.047
Use #3D9399 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.