#3FB7A5
Closest named color: Topaz (#13BBAF). oklch(70.8% 0.109 181.2), rgb(63, 183, 165).
Aa
Black text reads best on this color (8.52:1).
About this color
#3FB7A5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.109 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.018 away. Black text reads best on it, at 8.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.52:1 |
| White text | 2.46:1 |
Values
| HEX | #3FB7A5 |
| RGB | rgb(63, 183, 165) |
| HSL | hsl(171, 49%, 48%) |
| OKLCH | oklch(70.8% 0.109 181.2) |
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 #3FB7A5 | 2.46:1 | Fails | Lc -53.1 | Large or bold text, headings |
| Black text on #3FB7A5 | 8.52:1 | AAA | Lc 55.9 | Large or bold text, headings |
| #3FB7A5 text on white | 2.46:1 | Fails | Lc 48.1 | Large or bold text, headings |
| #3FB7A5 text on black | 8.52:1 | AAA | Lc -53.9 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DDEEEA
oklch(93.5% 0.019 180.3)
-
Step 200
200
#BFE2DA
oklch(88.5% 0.038 180)
-
Step 300
300
#8FCFC3
oklch(80.8% 0.067 181.5)
-
Step 400
400 (this color)
#3FB7A5
oklch(70.8% 0.109 181.2)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#3FB7A5 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) | #AFADA4 | 0.115 |
| Deuteranopia (no green cones) | #9EA0A7 | 0.110 |
| Tritanopia (no blue cones) | #00BAB1 | 0.021 |
| Achromatopsia (no color) | #A5A5A5 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FB7A5
#3FB7A5
oklch(70.8% 0.109 181.2)
- #D9839D
#D9839D
oklch(70.8% 0.11 0.8)
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 #3FB7A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.018
- Greeny Blue #42B395 ΔE 0.022
- Light Sea Green #20B2AA ΔE 0.024
- Green Blue #01C08D ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.056
- Tea #65AB7C ΔE 0.057
- Greenblue #23C48B ΔE 0.062
- Bluey Green #2BB179 ΔE 0.063
Use #3FB7A5 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.