#4DC9A8
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.8% 0.12 172.3), rgb(77, 201, 168).
Aa
Black text reads best on this color (10.23:1).
About this color
#4DC9A8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.120 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.023 away. Black text reads best on it, at 10.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.23:1 |
| White text | 2.05:1 |
Values
| HEX | #4DC9A8 |
| RGB | rgb(77, 201, 168) |
| HSL | hsl(164, 53%, 55%) |
| OKLCH | oklch(75.8% 0.12 172.3) |
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 #4DC9A8 | 2.05:1 | Fails | Lc -44.2 | Non-text elements, placeholder text |
| Black text on #4DC9A8 | 10.23:1 | AAA | Lc 64.3 | Content text, not long reading |
| #4DC9A8 text on white | 2.05:1 | Fails | Lc 39.7 | Non-text elements, placeholder text |
| #4DC9A8 text on black | 10.23:1 | AAA | Lc -62.7 | Content text, not long reading |
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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DCEFE8
oklch(93.6% 0.022 171.8)
-
Step 200
200
#BEE3D6
oklch(88.6% 0.043 172)
-
Step 300
300
#8DD1BB
oklch(80.9% 0.076 172.1)
-
Step 400
400 (this color)
#4DC9A8
oklch(75.8% 0.12 172.3)
-
Step 500
500
#00A181
oklch(63.2% 0.122 172)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#4DC9A8 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) | #C3BDA6 | 0.124 |
| Deuteranopia (no green cones) | #B1B0AA | 0.118 |
| Tritanopia (no blue cones) | #00CBBF | 0.035 |
| Achromatopsia (no color) | #B5B5B5 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4DC9A8
#4DC9A8
oklch(75.8% 0.12 172.3)
- #EB8FB8
#EB8FB8
oklch(75.7% 0.121 352.2)
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 #4DC9A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.023
- Emerald #06D6A0 ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.047
- Greenblue #23C48B ΔE 0.048
- Pale Teal #82CBB2 ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.049
- Green Blue #01C08D ΔE 0.053
- Topaz #13BBAF ΔE 0.053
Use #4DC9A8 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.