#4FA3AD
Closest named color: Cadet Blue (#5F9EA0). oklch(66.7% 0.082 205.7), rgb(79, 163, 173).
Aa
Black text reads best on this color (7.17:1).
About this color
#4FA3AD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.082 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.022 away. Black text reads best on it, at 7.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.17:1 |
| White text | 2.92:1 |
Values
| HEX | #4FA3AD |
| RGB | rgb(79, 163, 173) |
| HSL | hsl(186, 37%, 49%) |
| OKLCH | oklch(66.7% 0.082 205.7) |
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 #4FA3AD | 2.92:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #4FA3AD | 7.17:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #4FA3AD text on white | 2.92:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #4FA3AD text on black | 7.17:1 | AAA | Lc -46.3 | 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 500.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CD
oklch(81% 0.041 204.3)
-
Step 400
400
#6FADB4
oklch(70.8% 0.065 204.9)
-
Step 500
500 (this color)
#4FA3AD
oklch(66.7% 0.082 205.7)
-
Step 600
600
#18828D
oklch(55.6% 0.09 205.9)
-
Step 700
700
#036E78
oklch(49.2% 0.083 205.9)
-
Step 800
800
#0D5A61
oklch(42.8% 0.069 204.6)
-
Step 900
900
#174A4F
oklch(37.8% 0.054 204.3)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#4FA3AD 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) | #989DAE | 0.082 |
| Deuteranopia (no green cones) | #8992AD | 0.075 |
| Tritanopia (no blue cones) | #00A9A6 | 0.039 |
| Achromatopsia (no color) | #979797 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA3AD
#4FA3AD
oklch(66.7% 0.082 205.7)
- #C2817A
#C2817A
oklch(66.8% 0.082 26.2)
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 #4FA3AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.022
- Dull Teal #5F9E8F ΔE 0.042
- Greyblue #77A1B5 ΔE 0.043
- Turquoise Blue #06B1C4 ΔE 0.047
- Sea #3C9992 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.049
- Grey Teal #5E9B8A ΔE 0.049
- Persian Green #2A9D8F ΔE 0.055
Use #4FA3AD 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.