#3ECAE5
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(77.7% 0.121 213.6), rgb(62, 202, 229).
Aa
Black text reads best on this color (10.78:1).
About this color
#3ECAE5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.121 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.020 away. Black text reads best on it, at 10.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.78:1 |
| White text | 1.94:1 |
Values
| HEX | #3ECAE5 |
| RGB | rgb(62, 202, 229) |
| HSL | hsl(190, 76%, 57%) |
| OKLCH | oklch(77.7% 0.121 213.6) |
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 #3ECAE5 | 1.94:1 | Fails | Lc -41.3 | Non-text elements, placeholder text |
| Black text on #3ECAE5 | 10.78:1 | AAA | Lc 66.9 | Content text, not long reading |
| #3ECAE5 text on white | 1.94:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #3ECAE5 text on black | 10.78:1 | AAA | Lc -65.4 | 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
#EAF9FC
oklch(97.2% 0.016 211)
-
Step 100
100
#D0F1F8
oklch(93.7% 0.036 211.9)
-
Step 200
200
#A5E5F4
oklch(88.4% 0.067 213.8)
-
Step 300
300 (this color)
#3ECAE5
oklch(77.7% 0.121 213.6)
-
Step 400
400
#00B4CF
oklch(70.8% 0.124 213.4)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008196
oklch(55.5% 0.098 214.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#3ECAE5 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) | #B6C3E7 | 0.110 |
| Deuteranopia (no green cones) | #9FB2E5 | 0.100 |
| Tritanopia (no blue cones) | #00D4D2 | 0.048 |
| Achromatopsia (no color) | #BABABA | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3ECAE5
#3ECAE5
oklch(77.7% 0.121 213.6)
- #FA9983
#FA9983
oklch(77.8% 0.121 33.6)
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 #3ECAE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.020
- Bright Sky Blue #02CCFE ΔE 0.036
- Aqua Blue #02D8E9 ΔE 0.038
- Dark Turquoise #00CED1 ΔE 0.039
- Medium Turquoise #48D1CC ΔE 0.047
- Lightblue #7BC8F6 ΔE 0.053
- Deep Sky Blue #00BFFF ΔE 0.058
- Sky Blue #87CEEB ΔE 0.059
Use #3ECAE5 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.