#39AD99
Closest named color: Greeny Blue (#42B395). oklch(67.8% 0.107 179.1), rgb(57, 173, 153).
Aa
Black text reads best on this color (7.61:1).
About this color
#39AD99 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.107 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.022 away. Black text reads best on it, at 7.61:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #39AD99 |
| RGB | rgb(57, 173, 153) |
| HSL | hsl(170, 50%, 45%) |
| OKLCH | oklch(67.8% 0.107 179.1) |
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 #39AD99 | 2.75:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #39AD99 | 7.61:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #39AD99 text on white | 2.75:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #39AD99 text on black | 7.61:1 | AAA | Lc -48.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF7F5
oklch(97% 0.009 179.6)
-
Step 100
100
#DDEEEA
oklch(93.5% 0.019 180.3)
-
Step 200
200
#C0E2D9
oklch(88.6% 0.038 177.6)
-
Step 300
300
#91CFC1
oklch(80.8% 0.066 178.9)
-
Step 400
400 (this color)
#39AD99
oklch(67.8% 0.107 179.1)
-
Step 500
500
#00A08B
oklch(63.2% 0.115 179)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#39AD99 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) | #A6A398 | 0.113 |
| Deuteranopia (no green cones) | #95979B | 0.106 |
| Tritanopia (no blue cones) | #00B0A7 | 0.022 |
| Achromatopsia (no color) | #9C9C9C | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39AD99
#39AD99
oklch(67.8% 0.107 179.1)
- #CD7B96
#CD7B96
oklch(67.8% 0.107 359.2)
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 #39AD99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.022
- Light Sea Green #20B2AA ΔE 0.024
- Topaz #13BBAF ΔE 0.042
- Dull Teal #5F9E8F ΔE 0.046
- Tea #65AB7C ΔE 0.046
- Persian Green #2A9D8F ΔE 0.048
- Dark Seafoam Green #3EAF76 ΔE 0.052
- Grey Teal #5E9B8A ΔE 0.052
Use #39AD99 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.