#4FAC91
Closest named color: Greeny Blue (#42B395). oklch(68% 0.098 171.7), rgb(79, 172, 145).
Aa
Black text reads best on this color (7.64:1).
About this color
#4FAC91 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.098 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.020 away. Black text reads best on it, at 7.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.64:1 |
| White text | 2.74:1 |
Values
| HEX | #4FAC91 |
| RGB | rgb(79, 172, 145) |
| HSL | hsl(163, 37%, 49%) |
| OKLCH | oklch(68% 0.098 171.7) |
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 #4FAC91 | 2.74:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #4FAC91 | 7.64:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #4FAC91 text on white | 2.74:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #4FAC91 text on black | 7.64:1 | AAA | Lc -49.0 | 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
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C4E1D6
oklch(88.5% 0.034 170.7)
-
Step 300
300
#99CEBC
oklch(80.9% 0.061 171.8)
-
Step 400
400 (this color)
#4FAC91
oklch(68% 0.098 171.7)
-
Step 500
500
#00A180
oklch(63.1% 0.123 171.4)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#012E23
oklch(26.9% 0.051 171.7)
#4FAC91 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) | #A7A290 | 0.101 |
| Deuteranopia (no green cones) | #999893 | 0.096 |
| Tritanopia (no blue cones) | #22ADA4 | 0.033 |
| Achromatopsia (no color) | #9C9C9C | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FAC91
#4FAC91
oklch(68% 0.098 171.7)
- #C77F9F
#C77F9F
oklch(68.1% 0.098 351.8)
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 #4FAC91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.020
- Tea #65AB7C ΔE 0.031
- Light Sea Green #20B2AA ΔE 0.037
- Dull Teal #5F9E8F ΔE 0.041
- Dark Seafoam Green #3EAF76 ΔE 0.045
- Grey Teal #5E9B8A ΔE 0.048
- Dusty Green #76A973 ΔE 0.048
- Bluey Green #2BB179 ΔE 0.048
Use #4FAC91 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.