#3FA0B2
Closest named color: Cadet Blue (#5F9EA0). oklch(65.6% 0.093 212), rgb(63, 160, 178).
Aa
Black text reads best on this color (6.88:1).
About this color
#3FA0B2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.093 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.033 away. Black text reads best on it, at 6.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.88:1 |
| White text | 3.05:1 |
Values
| HEX | #3FA0B2 |
| RGB | rgb(63, 160, 178) |
| HSL | hsl(189, 48%, 47%) |
| OKLCH | oklch(65.6% 0.093 212) |
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 #3FA0B2 | 3.05:1 | AA large text | Lc -62.4 | Content text, not long reading |
| Black text on #3FA0B2 | 6.88:1 | AA | Lc 47.0 | Large or bold text, headings |
| #3FA0B2 text on white | 3.05:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #3FA0B2 text on black | 6.88:1 | AA | Lc -44.7 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECEF
oklch(93.5% 0.013 214.4)
-
Step 200
200
#C7DEE3
oklch(88.5% 0.025 212.2)
-
Step 300
300
#A0C9D2
oklch(80.9% 0.045 212.6)
-
Step 400
400
#68ADBB
oklch(70.7% 0.073 212)
-
Step 500
500 (this color)
#3FA0B2
oklch(65.6% 0.093 212)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#0D4A54
oklch(37.7% 0.06 211.5)
-
Step 950
950
#0B2B31
oklch(26.9% 0.038 212.2)
#3FA0B2 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) | #929BB3 | 0.086 |
| Deuteranopia (no green cones) | #818EB2 | 0.079 |
| Tritanopia (no blue cones) | #00A8A5 | 0.041 |
| Achromatopsia (no color) | #949494 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA0B2
#3FA0B2
oklch(65.6% 0.093 212)
- #C37B6D
#C37B6D
oklch(65.5% 0.093 31.6)
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 #3FA0B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.033
- Sea #3C9992 ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.048
- Greyblue #77A1B5 ΔE 0.053
- Dull Teal #5F9E8F ΔE 0.054
- Persian Green #2A9D8F ΔE 0.056
- Light Sea Green #20B2AA ΔE 0.058
- Grey Teal #5E9B8A ΔE 0.058
Use #3FA0B2 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.