#4FB1BB
Closest named color: Turquoise Blue (#06B1C4). oklch(70.6% 0.092 204.4), rgb(79, 177, 187).
Aa
Black text reads best on this color (8.33:1).
About this color
#4FB1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.092 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.030 away. Black text reads best on it, at 8.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.33:1 |
| White text | 2.51:1 |
Values
| HEX | #4FB1BB |
| RGB | rgb(79, 177, 187) |
| HSL | hsl(186, 44%, 52%) |
| OKLCH | oklch(70.6% 0.092 204.4) |
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 #4FB1BB | 2.51:1 | Fails | Lc -54.2 | Large or bold text, headings |
| Black text on #4FB1BB | 8.33:1 | AAA | Lc 54.8 | Large or bold text, headings |
| #4FB1BB text on white | 2.51:1 | Fails | Lc 49.2 | Large or bold text, headings |
| #4FB1BB text on black | 8.33:1 | AAA | Lc -52.8 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DEEDEF
oklch(93.6% 0.016 206.4)
-
Step 200
200
#C2E0E3
oklch(88.6% 0.032 204)
-
Step 300
300
#95CCD2
oklch(80.9% 0.057 204.5)
-
Step 400
400 (this color)
#4FB1BB
oklch(70.6% 0.092 204.4)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#4FB1BB 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) | #A4AABC | 0.091 |
| Deuteranopia (no green cones) | #939EBB | 0.083 |
| Tritanopia (no blue cones) | #00B8B4 | 0.037 |
| Achromatopsia (no color) | #A3A3A3 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FB1BB
#4FB1BB
oklch(70.6% 0.092 204.4)
- #D48984
#D48984
oklch(70.6% 0.093 23.8)
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 #4FB1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.030
- Light Sea Green #20B2AA ΔE 0.038
- Topaz #13BBAF ΔE 0.045
- Greyblue #77A1B5 ΔE 0.053
- Cadet Blue #5F9EA0 ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.059
- Greeny Blue #42B395 ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.067
Use #4FB1BB 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.