#3BC4B3
Closest named color: Topaz (#13BBAF). oklch(74.4% 0.118 183), rgb(59, 196, 179).
Aa
Black text reads best on this color (9.73:1).
About this color
#3BC4B3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.118 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.031 away. Black text reads best on it, at 9.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.73:1 |
| White text | 2.15:1 |
Values
| HEX | #3BC4B3 |
| RGB | rgb(59, 196, 179) |
| HSL | hsl(173, 54%, 50%) |
| OKLCH | oklch(74.4% 0.118 183) |
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 #3BC4B3 | 2.15:1 | Fails | Lc -46.7 | Large or bold text, headings |
| Black text on #3BC4B3 | 9.73:1 | AAA | Lc 61.9 | Content text, not long reading |
| #3BC4B3 text on white | 2.15:1 | Fails | Lc 42.0 | Non-text elements, placeholder text |
| #3BC4B3 text on black | 9.73:1 | AAA | Lc -60.2 | Content text, not long reading |
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
#DBEFEB
oklch(93.6% 0.022 182.5)
-
Step 200
200
#BCE2DB
oklch(88.4% 0.041 183)
-
Step 300
300
#89D1C5
oklch(81% 0.074 182.8)
-
Step 400
400 (this color)
#3BC4B3
oklch(74.4% 0.118 183)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007065
oklch(49% 0.087 183.1)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#3BC4B3 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) | #BBB9B2 | 0.125 |
| Deuteranopia (no green cones) | #A7ABB5 | 0.117 |
| Tritanopia (no blue cones) | #00C8BF | 0.019 |
| Achromatopsia (no color) | #B0B0B0 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BC4B3
#3BC4B3
oklch(74.4% 0.118 183)
- #EA8BA5
#EA8BA5
oklch(74.4% 0.119 2.7)
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 #3BC4B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.031
- Dark Turquoise #00CED1 ΔE 0.043
- Medium Aquamarine #66CDAA ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.046
- Light Sea Green #20B2AA ΔE 0.054
- Greeny Blue #42B395 ΔE 0.054
- Green Blue #01C08D ΔE 0.058
- Greenblue #23C48B ΔE 0.060
Use #3BC4B3 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.