#3ADDE7
Closest named color: Aqua Blue (#02D8E9). oklch(82.2% 0.128 201.2), rgb(58, 221, 231).
Aa
Black text reads best on this color (12.67:1).
About this color
#3ADDE7 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.128 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.021 away. Black text reads best on it, at 12.67:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.67:1 |
| White text | 1.65:1 |
Values
| HEX | #3ADDE7 |
| RGB | rgb(58, 221, 231) |
| HSL | hsl(183, 78%, 57%) |
| OKLCH | oklch(82.2% 0.128 201.2) |
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 #3ADDE7 | 1.65:1 | Fails | Lc -32.2 | Non-text elements, placeholder text |
| Black text on #3ADDE7 | 12.67:1 | AAA | Lc 75.3 | Fine for body text |
| #3ADDE7 text on white | 1.65:1 | Fails | Lc 28.5 | Dividers and decoration only |
| #3ADDE7 text on black | 12.67:1 | AAA | Lc -74.4 | 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
#E9F9FA
oklch(97.1% 0.017 201.4)
-
Step 100
100
#CEF2F4
oklch(93.6% 0.037 200.7)
-
Step 200
200
#A0E8ED
oklch(88.5% 0.072 201.4)
-
Step 300
300 (this color)
#3ADDE7
oklch(82.2% 0.128 201.2)
-
Step 400
400
#00B6C0
oklch(70.7% 0.12 201.8)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005A5F
oklch(42.5% 0.072 201.4)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#3ADDE7 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) | #CCD3E8 | 0.130 |
| Deuteranopia (no green cones) | #B4C1E8 | 0.121 |
| Tritanopia (no blue cones) | #00E6E0 | 0.031 |
| Achromatopsia (no color) | #C9C9C9 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3ADDE7
#3ADDE7
oklch(82.2% 0.128 201.2)
- #FFABA8
#FFABA8
oklch(82.2% 0.1 21.7)
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 #3ADDE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.021
- Turquoise #40E0D0 ΔE 0.037
- Medium Turquoise #48D1CC ΔE 0.042
- Dark Turquoise #00CED1 ΔE 0.051
- Robin's Egg #6DEDFD ΔE 0.061
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Sky Blue #87CEEB ΔE 0.064
- Bright Sky Blue #02CCFE ΔE 0.068
Use #3ADDE7 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.