#4ECBCA
Closest named color: Medium Turquoise (#48D1CC). oklch(77.3% 0.109 194.4), rgb(78, 203, 202).
Aa
Black text reads best on this color (10.71:1).
About this color
#4ECBCA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.109 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.016 away. Black text reads best on it, at 10.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 10.71:1 |
| White text | 1.95:1 |
Values
| HEX | #4ECBCA |
| RGB | rgb(78, 203, 202) |
| HSL | hsl(180, 55%, 55%) |
| OKLCH | oklch(77.3% 0.109 194.4) |
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 #4ECBCA | 1.95:1 | Fails | Lc -41.8 | Non-text elements, placeholder text |
| Black text on #4ECBCA | 10.71:1 | AAA | Lc 66.5 | Content text, not long reading |
| #4ECBCA text on white | 1.95:1 | Fails | Lc 37.4 | Non-text elements, placeholder text |
| #4ECBCA text on black | 10.71:1 | AAA | Lc -65.0 | 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
#EBF9F8
oklch(97.1% 0.015 191.8)
-
Step 100
100
#D3F1F0
oklch(93.6% 0.031 194.2)
-
Step 200
200
#AAE6E5
oklch(88.4% 0.061 194.8)
-
Step 300
300 (this color)
#4ECBCA
oklch(77.3% 0.109 194.4)
-
Step 400
400
#00B8B7
oklch(70.8% 0.121 194.1)
-
Step 500
500
#009D9D
oklch(63% 0.108 194.8)
-
Step 600
600
#008484
oklch(55.5% 0.095 194.8)
-
Step 700
700
#006F6F
oklch(49% 0.084 194.8)
-
Step 800
800
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#004C4C
oklch(37.7% 0.064 194.8)
-
Step 950
950
#002D2D
oklch(26.9% 0.046 194.8)
#4ECBCA 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) | #BFC2CA | 0.114 |
| Deuteranopia (no green cones) | #ABB3CB | 0.107 |
| Tritanopia (no blue cones) | #00D1CA | 0.026 |
| Achromatopsia (no color) | #B9B9B9 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ECBCA
#4ECBCA
oklch(77.3% 0.109 194.4)
- #F298A0
#F298A0
oklch(77.3% 0.108 14.1)
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 #4ECBCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.016
- Dark Turquoise #00CED1 ΔE 0.023
- Aqua Blue #02D8E9 ΔE 0.048
- Seafoam Blue #78D1B6 ΔE 0.048
- Medium Aquamarine #66CDAA ΔE 0.049
- Pale Teal #82CBB2 ΔE 0.050
- Turquoise #40E0D0 ΔE 0.057
- Vivid Sky Blue #4CC9F0 ΔE 0.058
Use #4ECBCA 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.