#4FA1B8
Closest named color: Cadet Blue (#5F9EA0). oklch(66.7% 0.086 218.7), rgb(79, 161, 184).
Aa
Black text reads best on this color (7.12:1).
About this color
#4FA1B8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.086 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.035 away. Black text reads best on it, at 7.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.12:1 |
| White text | 2.94:1 |
Values
| HEX | #4FA1B8 |
| RGB | rgb(79, 161, 184) |
| HSL | hsl(193, 43%, 52%) |
| OKLCH | oklch(66.7% 0.086 218.7) |
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 #4FA1B8 | 2.94:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #4FA1B8 | 7.12:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #4FA1B8 text on white | 2.94:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #4FA1B8 text on black | 7.12:1 | AAA | Lc -46.0 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D3
oklch(81% 0.042 217.8)
-
Step 400
400
#6FABBD
oklch(70.7% 0.067 218.8)
-
Step 500
500 (this color)
#4FA1B8
oklch(66.7% 0.086 218.7)
-
Step 600
600
#1A8098
oklch(55.6% 0.094 218.4)
-
Step 700
700
#056C82
oklch(49.1% 0.087 218.7)
-
Step 800
800
#0E586A
oklch(42.7% 0.073 219.3)
-
Step 900
900
#174956
oklch(37.8% 0.056 218.4)
-
Step 950
950
#0F2B32
oklch(27.1% 0.036 216.6)
#4FA1B8 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) | #929DB9 | 0.074 |
| Deuteranopia (no green cones) | #8391B8 | 0.067 |
| Tritanopia (no blue cones) | #00A9A8 | 0.050 |
| Achromatopsia (no color) | #969696 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA1B8
#4FA1B8
oklch(66.7% 0.086 218.7)
- #C2826D
#C2826D
oklch(66.7% 0.086 38.9)
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 #4FA1B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.035
- Greyblue #77A1B5 ΔE 0.039
- Turquoise Blue #06B1C4 ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.057
- Dull Teal #5F9E8F ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.061
- Sea #3C9992 ΔE 0.061
- Blue Grey #758DA3 ΔE 0.062
Use #4FA1B8 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.