#4FA09C
Closest named color: Cadet Blue (#5F9EA0). oklch(65.4% 0.08 191.1), rgb(79, 160, 156).
Aa
Black text reads best on this color (6.84:1).
About this color
#4FA09C is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.080 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.018 away. Black text reads best on it, at 6.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.84:1 |
| White text | 3.06:1 |
Values
| HEX | #4FA09C |
| RGB | rgb(79, 160, 156) |
| HSL | hsl(177, 34%, 47%) |
| OKLCH | oklch(65.4% 0.08 191.1) |
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 #4FA09C | 3.06:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #4FA09C | 6.84:1 | AA | Lc 46.6 | Large or bold text, headings |
| #4FA09C text on white | 3.06:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #4FA09C text on black | 6.84:1 | AA | Lc -44.3 | Non-text elements, placeholder text |
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
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDC
oklch(88.5% 0.022 189.5)
-
Step 300
300
#A5C9C7
oklch(80.9% 0.038 192.3)
-
Step 400
400
#72ADAA
oklch(70.6% 0.061 191.8)
-
Step 500
500 (this color)
#4FA09C
oklch(65.4% 0.08 191.1)
-
Step 600
600
#21837F
oklch(55.5% 0.087 190.9)
-
Step 700
700
#106F6C
oklch(49.1% 0.081 191.4)
-
Step 800
800
#145A58
oklch(42.6% 0.066 192.1)
-
Step 900
900
#1A4A48
oklch(37.6% 0.051 191.4)
-
Step 950
950
#112C2A
oklch(27.1% 0.033 189)
#4FA09C 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) | #98999C | 0.084 |
| Deuteranopia (no green cones) | #8A8F9D | 0.078 |
| Tritanopia (no blue cones) | #1CA49F | 0.028 |
| Achromatopsia (no color) | #939393 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA09C
#4FA09C
oklch(65.4% 0.08 191.1)
- #BB7C84
#BB7C84
oklch(65.3% 0.079 11.2)
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 #4FA09C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.018
- Dull Teal #5F9E8F ΔE 0.021
- Grey Teal #5E9B8A ΔE 0.027
- Sea #3C9992 ΔE 0.029
- Persian Green #2A9D8F ΔE 0.034
- Blue Green #0F9B8E ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.051
- Light Sea Green #20B2AA ΔE 0.051
Use #4FA09C 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.