#4FA59B
Closest named color: Dull Teal (#5F9E8F). oklch(66.6% 0.085 185.3), rgb(79, 165, 155).
Aa
Black text reads best on this color (7.18:1).
About this color
#4FA59B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.085 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.023 away. Black text reads best on it, at 7.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.18:1 |
| White text | 2.92:1 |
Values
| HEX | #4FA59B |
| RGB | rgb(79, 165, 155) |
| HSL | hsl(173, 35%, 48%) |
| OKLCH | oklch(66.6% 0.085 185.3) |
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 #4FA59B | 2.92:1 | Fails | Lc -60.7 | Content text, not long reading |
| Black text on #4FA59B | 7.18:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #4FA59B text on white | 2.92:1 | Fails | Lc 55.4 | Large or bold text, headings |
| #4FA59B text on black | 7.18:1 | AAA | Lc -46.4 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEB
oklch(93.7% 0.012 184.1)
-
Step 200
200
#C9DEDB
oklch(88.4% 0.023 186.4)
-
Step 300
300
#A3CAC4
oklch(80.9% 0.042 184.9)
-
Step 400
400
#6FAEA6
oklch(70.6% 0.066 185.7)
-
Step 500
500 (this color)
#4FA59B
oklch(66.6% 0.085 185.3)
-
Step 600
600
#19857B
oklch(55.7% 0.092 185.2)
-
Step 700
700
#037067
oklch(49.1% 0.086 185.1)
-
Step 800
800
#0D5B54
oklch(42.6% 0.071 185.5)
-
Step 900
900
#174B46
oklch(37.7% 0.055 186.2)
-
Step 950
950
#0F2C29
oklch(27% 0.035 186.3)
#4FA59B 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) | #9E9D9B | 0.091 |
| Deuteranopia (no green cones) | #90939C | 0.085 |
| Tritanopia (no blue cones) | #1BA8A2 | 0.027 |
| Achromatopsia (no color) | #979797 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA59B
#4FA59B
oklch(66.6% 0.085 185.3)
- #C17E8D
#C17E8D
oklch(66.6% 0.085 5)
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 #4FA59B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.023
- Cadet Blue #5F9EA0 ΔE 0.027
- Grey Teal #5E9B8A ΔE 0.032
- Persian Green #2A9D8F ΔE 0.039
- Light Sea Green #20B2AA ΔE 0.039
- Sea #3C9992 ΔE 0.040
- Greeny Blue #42B395 ΔE 0.045
- Blue Green #0F9B8E ΔE 0.050
Use #4FA59B 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.