#3D9989
Closest named color: Sea (#3C9992). oklch(62.3% 0.09 179.8), rgb(61, 153, 137).
Aa
Black text reads best on this color (6.11:1).
About this color
#3D9989 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.090 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.014 away. Black text reads best on it, at 6.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #3D9989 |
| RGB | rgb(61, 153, 137) |
| HSL | hsl(170, 43%, 42%) |
| OKLCH | oklch(62.3% 0.09 179.8) |
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 #3D9989 | 3.43:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #3D9989 | 6.11:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #3D9989 text on white | 3.43:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #3D9989 text on black | 6.11:1 | AA | Lc -40.1 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFD9
oklch(88.6% 0.025 177.6)
-
Step 300
300
#A2CAC1
oklch(80.8% 0.044 179.9)
-
Step 400
400
#6DAFA2
oklch(70.6% 0.07 180.3)
-
Step 500
500 (this color)
#3D9989
oklch(62.3% 0.09 179.8)
-
Step 600
600
#0E8675
oklch(55.7% 0.099 179.4)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#065C50
oklch(42.6% 0.076 179.6)
-
Step 900
900
#144C43
oklch(37.8% 0.059 180.1)
-
Step 950
950
#0E2C27
oklch(26.9% 0.037 180.8)
#3D9989 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) | #939088 | 0.096 |
| Deuteranopia (no green cones) | #85868A | 0.091 |
| Tritanopia (no blue cones) | #009B94 | 0.024 |
| Achromatopsia (no color) | #8A8A8A | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9989
#3D9989
oklch(62.3% 0.09 179.8)
- #B47085
#B47085
oklch(62.4% 0.09 0.1)
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 #3D9989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.014
- Persian Green #2A9D8F ΔE 0.014
- Blue Green #0F9B8E ΔE 0.019
- Dusty Teal #4C9085 ΔE 0.026
- Grey Teal #5E9B8A ΔE 0.030
- Ocean Green #3D9973 ΔE 0.033
- Dull Teal #5F9E8F ΔE 0.036
- Teal Green #0A9396 ΔE 0.038
Use #3D9989 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.