#4FC0B3
Closest named color: Topaz (#13BBAF). oklch(74% 0.104 184.8), rgb(79, 192, 179).
Aa
Black text reads best on this color (9.52:1).
About this color
#4FC0B3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.104 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.032 away. Black text reads best on it, at 9.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.52:1 |
| White text | 2.20:1 |
Values
| HEX | #4FC0B3 |
| RGB | rgb(79, 192, 179) |
| HSL | hsl(173, 47%, 53%) |
| OKLCH | oklch(74% 0.104 184.8) |
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 #4FC0B3 | 2.20:1 | Fails | Lc -47.9 | Large or bold text, headings |
| Black text on #4FC0B3 | 9.52:1 | AAA | Lc 60.8 | Content text, not long reading |
| #4FC0B3 text on white | 2.20:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #4FC0B3 text on black | 9.52:1 | AAA | Lc -59.0 | 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 400.
-
Step 50
50
#EFF7F6
oklch(97% 0.009 188.1)
-
Step 100
100
#DDEEEB
oklch(93.6% 0.018 184.3)
-
Step 200
200
#C0E1DC
oklch(88.4% 0.035 185.4)
-
Step 300
300
#90CFC6
oklch(80.9% 0.066 184.9)
-
Step 400
400 (this color)
#4FC0B3
oklch(74% 0.104 184.8)
-
Step 500
500
#009F92
oklch(63.2% 0.111 184.7)
-
Step 600
600
#00867B
oklch(55.7% 0.098 184.8)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#4FC0B3 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) | #B7B6B3 | 0.111 |
| Deuteranopia (no green cones) | #A6A9B4 | 0.105 |
| Tritanopia (no blue cones) | #00C4BC | 0.026 |
| Achromatopsia (no color) | #AFAFAF | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FC0B3
#4FC0B3
oklch(74% 0.104 184.8)
- #E28FA2
#E28FA2
oklch(74% 0.103 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 #4FC0B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.032
- Medium Aquamarine #66CDAA ΔE 0.048
- Dark Turquoise #00CED1 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.050
- Medium Turquoise #48D1CC ΔE 0.050
- Greeny Blue #42B395 ΔE 0.052
- Pale Teal #82CBB2 ΔE 0.057
- Seafoam Blue #78D1B6 ΔE 0.062
Use #4FC0B3 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.