#3FBD99
Closest named color: Greeny Blue (#42B395). oklch(72% 0.122 170.1), rgb(63, 189, 153).
Aa
Black text reads best on this color (8.95:1).
About this color
#3FBD99 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.122 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.028 away. Black text reads best on it, at 8.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.95:1 |
| White text | 2.34:1 |
Values
| HEX | #3FBD99 |
| RGB | rgb(63, 189, 153) |
| HSL | hsl(163, 50%, 49%) |
| OKLCH | oklch(72% 0.122 170.1) |
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 #3FBD99 | 2.34:1 | Fails | Lc -50.8 | Large or bold text, headings |
| Black text on #3FBD99 | 8.95:1 | AAA | Lc 58.1 | Large or bold text, headings |
| #3FBD99 text on white | 2.34:1 | Fails | Lc 45.9 | Large or bold text, headings |
| #3FBD99 text on black | 8.95:1 | AAA | Lc -56.2 | 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
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DCEFE8
oklch(93.6% 0.022 171.8)
-
Step 200
200
#BEE3D5
oklch(88.5% 0.043 170.4)
-
Step 300
300
#8ED1B9
oklch(80.9% 0.076 169.9)
-
Step 400
400 (this color)
#3FBD99
oklch(72% 0.122 170.1)
-
Step 500
500
#00A17E
oklch(63.1% 0.125 170.2)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#3FBD99 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) | #B8B197 | 0.125 |
| Deuteranopia (no green cones) | #A6A49B | 0.119 |
| Tritanopia (no blue cones) | #00BEB3 | 0.038 |
| Achromatopsia (no color) | #A9A9A9 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FBD99
#3FBD99
oklch(72% 0.122 170.1)
- #DE83AF
#DE83AF
oklch(72% 0.123 350.2)
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 #3FBD99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.028
- Green Blue #01C08D ΔE 0.029
- Greenblue #23C48B ΔE 0.035
- Topaz #13BBAF ΔE 0.036
- Dark Seafoam #1FB57A ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.049
- Bluey Green #2BB179 ΔE 0.052
- Dark Seafoam Green #3EAF76 ΔE 0.054
Use #3FBD99 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.