#4FA1AB
Closest named color: Cadet Blue (#5F9EA0). oklch(66.2% 0.081 206), rgb(79, 161, 171).
Aa
Black text reads best on this color (7.01:1).
About this color
#4FA1AB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.081 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.019 away. Black text reads best on it, at 7.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.01:1 |
| White text | 2.99:1 |
Values
| HEX | #4FA1AB |
| RGB | rgb(79, 161, 171) |
| HSL | hsl(187, 37%, 49%) |
| OKLCH | oklch(66.2% 0.081 206) |
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 #4FA1AB | 2.99:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #4FA1AB | 7.01:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #4FA1AB text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #4FA1AB text on black | 7.01:1 | AAA | Lc -45.4 | 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 500.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A4C8CD
oklch(80.8% 0.039 206.8)
-
Step 400
400
#70ACB4
oklch(70.6% 0.063 206.5)
-
Step 500
500 (this color)
#4FA1AB
oklch(66.2% 0.081 206)
-
Step 600
600
#1D828D
oklch(55.7% 0.088 206.1)
-
Step 700
700
#096E77
oklch(49.2% 0.082 205)
-
Step 800
800
#105961
oklch(42.6% 0.068 206.3)
-
Step 900
900
#184A4F
oklch(37.8% 0.053 204.5)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#4FA1AB 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) | #969BAC | 0.080 |
| Deuteranopia (no green cones) | #8790AB | 0.074 |
| Tritanopia (no blue cones) | #00A7A4 | 0.039 |
| Achromatopsia (no color) | #959595 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA1AB
#4FA1AB
oklch(66.2% 0.081 206)
- #BF7F79
#BF7F79
oklch(66.1% 0.081 25.4)
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 #4FA1AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.019
- Dull Teal #5F9E8F ΔE 0.040
- Greyblue #77A1B5 ΔE 0.045
- Sea #3C9992 ΔE 0.045
- Grey Teal #5E9B8A ΔE 0.046
- Turquoise Blue #06B1C4 ΔE 0.052
- Persian Green #2A9D8F ΔE 0.052
- Light Sea Green #20B2AA ΔE 0.053
Use #4FA1AB 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.