#3FB798
Closest named color: Greeny Blue (#42B395). oklch(70.5% 0.116 172.4), rgb(63, 183, 152).
Aa
Black text reads best on this color (8.43:1).
About this color
#3FB798 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.116 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.011 away. Black text reads best on it, at 8.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.43:1 |
| White text | 2.48:1 |
Values
| HEX | #3FB798 |
| RGB | rgb(63, 183, 152) |
| HSL | hsl(165, 49%, 48%) |
| OKLCH | oklch(70.5% 0.116 172.4) |
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 #3FB798 | 2.48:1 | Fails | Lc -53.6 | Large or bold text, headings |
| Black text on #3FB798 | 8.43:1 | AAA | Lc 55.4 | Large or bold text, headings |
| #3FB798 text on white | 2.48:1 | Fails | Lc 48.6 | Large or bold text, headings |
| #3FB798 text on black | 8.43:1 | AAA | Lc -53.4 | 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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DDEFE8
oklch(93.7% 0.021 170.6)
-
Step 200
200
#BFE2D6
oklch(88.4% 0.04 172.6)
-
Step 300
300
#90D0BC
oklch(80.9% 0.071 173)
-
Step 400
400 (this color)
#3FB798
oklch(70.5% 0.116 172.4)
-
Step 500
500
#00A181
oklch(63.2% 0.122 172)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#3FB798 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) | #B1AB97 | 0.120 |
| Deuteranopia (no green cones) | #A19F9A | 0.115 |
| Tritanopia (no blue cones) | #00B9AE | 0.032 |
| Achromatopsia (no color) | #A4A4A4 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FB798
#3FB798
oklch(70.5% 0.116 172.4)
- #D780A7
#D780A7
oklch(70.4% 0.117 352.2)
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 #3FB798, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.011
- Topaz #13BBAF ΔE 0.032
- Light Sea Green #20B2AA ΔE 0.036
- Green Blue #01C08D ΔE 0.038
- Tea #65AB7C ΔE 0.045
- Bluey Green #2BB179 ΔE 0.046
- Dark Seafoam #1FB57A ΔE 0.046
- Dark Seafoam Green #3EAF76 ΔE 0.047
Use #3FB798 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.