#4DF9F0
Closest named color: Bright Turquoise (#0FFEF9). oklch(89.4% 0.138 189.8), rgb(77, 249, 240).
Aa
Black text reads best on this color (16.12:1).
About this color
#4DF9F0 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.138 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Turquoise (#0FFEF9), ΔE 0.019 away. Black text reads best on it, at 16.12:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Bright Turquoise (#0FFEF9) |
| Black text | 16.12:1 |
| White text | 1.30:1 |
Values
| HEX | #4DF9F0 |
| RGB | rgb(77, 249, 240) |
| HSL | hsl(177, 93%, 64%) |
| OKLCH | oklch(89.4% 0.138 189.8) |
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 #4DF9F0 | 1.30:1 | Fails | Lc -16.8 | Dividers and decoration only |
| Black text on #4DF9F0 | 16.12:1 | AAA | Lc 89.1 | Fine for body text |
| #4DF9F0 text on white | 1.30:1 | Fails | Lc 14.6 | Not readable |
| #4DF9F0 text on black | 16.12:1 | AAA | Lc -89.2 | Fine for body 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 200.
-
Step 50
50
#E5FBF9
oklch(97.1% 0.023 190.2)
-
Step 100
100
#C4F5F1
oklch(93.5% 0.05 190.2)
-
Step 200
200 (this color)
#4DF9F0
oklch(89.4% 0.138 189.8)
-
Step 300
300
#00DDD4
oklch(81% 0.14 189.6)
-
Step 400
400
#00B8B1
oklch(70.6% 0.122 190)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#4DF9F0 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) | #EBECF0 | 0.146 |
| Deuteranopia (no green cones) | #D2DAF2 | 0.137 |
| Tritanopia (no blue cones) | #00FFF6 | 0.020 |
| Achromatopsia (no color) | #E1E1E1 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4DF9F0
#4DF9F0
oklch(89.4% 0.138 189.8)
- #FFCDD4
#FFCDD4
oklch(89.4% 0.057 8.9)
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 #4DF9F0, closest first.
No curated palette has a color within ΔE 0.04 of #4DF9F0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Turquoise #0FFEF9 ΔE 0.019
- Bright Cyan #41FDFE ΔE 0.019
- Bright Aqua #0BF9EA ΔE 0.020
- Bright Light Blue #26F7FD ΔE 0.023
- Cyan #00FFFF ΔE 0.024
- Robin's Egg #6DEDFD ΔE 0.045
- Light Turquoise #7EF4CC ΔE 0.050
- Robin Egg Blue #8AF1FE ΔE 0.052
Use #4DF9F0 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.