#4FB1DB
Closest named color: Turquoise Blue (#06B1C4). oklch(71.9% 0.109 229.3), rgb(79, 177, 219).
Aa
Black text reads best on this color (8.64:1).
About this color
#4FB1DB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.109 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.048 away. Black text reads best on it, at 8.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.64:1 |
| White text | 2.42:1 |
Values
| HEX | #4FB1DB |
| RGB | rgb(79, 177, 219) |
| HSL | hsl(198, 66%, 58%) |
| OKLCH | oklch(71.9% 0.109 229.3) |
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 #4FB1DB | 2.42:1 | Fails | Lc -52.6 | Large or bold text, headings |
| Black text on #4FB1DB | 8.64:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #4FB1DB text on white | 2.42:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #4FB1DB text on black | 8.64:1 | AAA | Lc -54.5 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DDEDF5
oklch(93.7% 0.02 229)
-
Step 200
200
#C0DFEE
oklch(88.6% 0.039 228.6)
-
Step 300
300
#92CAE4
oklch(80.9% 0.068 228.4)
-
Step 400
400 (this color)
#4FB1DB
oklch(71.9% 0.109 229.3)
-
Step 500
500
#0096C5
oklch(63% 0.125 229.4)
-
Step 600
600
#007EA6
oklch(55.5% 0.11 229.3)
-
Step 700
700
#006A8C
oklch(49% 0.097 229.1)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#4FB1DB 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) | #9BAEDD | 0.077 |
| Deuteranopia (no green cones) | #88A0DA | 0.067 |
| Tritanopia (no blue cones) | #00BDBF | 0.068 |
| Achromatopsia (no color) | #A6A6A6 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FB1DB
#4FB1DB
oklch(71.9% 0.109 229.3)
- #DC8F65
#DC8F65
oklch(71.9% 0.11 49)
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 #4FB1DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.048
- Deep Sky Blue #00BFFF ΔE 0.057
- Greyblue #77A1B5 ΔE 0.065
- Vivid Sky Blue #4CC9F0 ΔE 0.066
- Bluegrey #85A3B2 ΔE 0.073
- Bright Sky Blue #02CCFE ΔE 0.077
- Bluey Grey #89A0B0 ΔE 0.079
- Carolina Blue #8AB8FE ΔE 0.081
Use #4FB1DB 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.