#4ED2B2
Closest named color: Medium Aquamarine (#66CDAA). oklch(78.3% 0.124 173.9), rgb(78, 210, 178).
Aa
Black text reads best on this color (11.18:1).
About this color
#4ED2B2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.124 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.019 away. Black text reads best on it, at 11.18:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.18:1 |
| White text | 1.87:1 |
Values
| HEX | #4ED2B2 |
| RGB | rgb(78, 210, 178) |
| HSL | hsl(165, 59%, 56%) |
| OKLCH | oklch(78.3% 0.124 173.9) |
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 #4ED2B2 | 1.87:1 | Fails | Lc -39.4 | Non-text elements, placeholder text |
| Black text on #4ED2B2 | 11.18:1 | AAA | Lc 68.6 | Content text, not long reading |
| #4ED2B2 text on white | 1.87:1 | Fails | Lc 35.2 | Non-text elements, placeholder text |
| #4ED2B2 text on black | 11.18:1 | AAA | Lc -67.3 | 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 300.
-
Step 50
50
#EBF9F4
oklch(97% 0.016 172.7)
-
Step 100
100
#D2F2E8
oklch(93.5% 0.036 174.7)
-
Step 200
200
#AAE9D5
oklch(88.6% 0.069 173)
-
Step 300
300 (this color)
#4ED2B2
oklch(78.3% 0.124 173.9)
-
Step 400
400
#00BB9A
oklch(70.7% 0.134 174)
-
Step 500
500
#00A184
oklch(63.2% 0.121 173.8)
-
Step 600
600
#00876E
oklch(55.6% 0.106 173.6)
-
Step 700
700
#00725C
oklch(49.2% 0.094 173.1)
-
Step 800
800
#005D4B
oklch(42.7% 0.081 173.5)
-
Step 900
900
#004E3E
oklch(37.8% 0.073 172.9)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#4ED2B2 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) | #CBC5B1 | 0.129 |
| Deuteranopia (no green cones) | #B8B7B4 | 0.124 |
| Tritanopia (no blue cones) | #00D4C9 | 0.035 |
| Achromatopsia (no color) | #BDBDBD | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ED2B2
#4ED2B2
oklch(78.3% 0.124 173.9)
- #F696BE
#F696BE
oklch(78.3% 0.124 353.8)
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 #4ED2B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.019
- Seafoam Blue #78D1B6 ΔE 0.033
- Medium Turquoise #48D1CC ΔE 0.038
- Emerald #06D6A0 ΔE 0.040
- Pale Teal #82CBB2 ΔE 0.043
- Turquoise #40E0D0 ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.052
- Aqua Marine #2EE8BB ΔE 0.059
Use #4ED2B2 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.