#39DCEE
Closest named color: Aqua Blue (#02D8E9). oklch(82.2% 0.13 206.3), rgb(57, 220, 238).
Aa
Black text reads best on this color (12.64:1).
About this color
#39DCEE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.130 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.019 away. Black text reads best on it, at 12.64:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.64:1 |
| White text | 1.66:1 |
Values
| HEX | #39DCEE |
| RGB | rgb(57, 220, 238) |
| HSL | hsl(186, 84%, 58%) |
| OKLCH | oklch(82.2% 0.13 206.3) |
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 #39DCEE | 1.66:1 | Fails | Lc -32.3 | Non-text elements, placeholder text |
| Black text on #39DCEE | 12.64:1 | AAA | Lc 75.2 | Fine for body text |
| #39DCEE text on white | 1.66:1 | Fails | Lc 28.7 | Dividers and decoration only |
| #39DCEE text on black | 12.64:1 | AAA | Lc -74.2 | 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
#E9F9FB
oklch(97.1% 0.017 205.8)
-
Step 100
100
#CEF2F6
oklch(93.7% 0.038 204.7)
-
Step 200
200
#A0E7F1
oklch(88.4% 0.072 207)
-
Step 300
300 (this color)
#39DCEE
oklch(82.2% 0.13 206.3)
-
Step 400
400
#00B5C6
oklch(70.6% 0.121 206.7)
-
Step 500
500
#009BAA
oklch(63% 0.108 206.9)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#39DCEE 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) | #C9D3EF | 0.126 |
| Deuteranopia (no green cones) | #B0C1EE | 0.115 |
| Tritanopia (no blue cones) | #00E6E1 | 0.039 |
| Achromatopsia (no color) | #C9C9C9 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39DCEE
#39DCEE
oklch(82.2% 0.13 206.3)
- #FFACA3
#FFACA3
oklch(82.3% 0.099 26.3)
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 #39DCEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.019
- Turquoise #40E0D0 ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.049
- Vivid Sky Blue #4CC9F0 ΔE 0.053
- Dark Turquoise #00CED1 ΔE 0.054
- Bright Sky Blue #02CCFE ΔE 0.058
- Sky Blue #87CEEB ΔE 0.059
- Robin's Egg #6DEDFD ΔE 0.060
Use #39DCEE 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.