#39E0EE
Closest named color: Aqua Blue (#02D8E9). oklch(83.1% 0.131 203.6), rgb(57, 224, 238).
Aa
Black text reads best on this color (13.07:1).
About this color
#39E0EE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.131 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.027 away. Black text reads best on it, at 13.07:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 13.07:1 |
| White text | 1.60:1 |
Values
| HEX | #39E0EE |
| RGB | rgb(57, 224, 238) |
| HSL | hsl(185, 84%, 58%) |
| OKLCH | oklch(83.1% 0.131 203.6) |
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 #39E0EE | 1.60:1 | Fails | Lc -30.3 | Non-text elements, placeholder text |
| Black text on #39E0EE | 13.07:1 | AAA | Lc 77.0 | Fine for body text |
| #39E0EE text on white | 1.60:1 | Fails | Lc 26.8 | Dividers and decoration only |
| #39E0EE text on black | 13.07:1 | AAA | Lc -76.2 | 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 300.
-
Step 50
50
#E9F9FB
oklch(97.1% 0.017 205.8)
-
Step 100
100
#CEF2F5
oklch(93.6% 0.038 202.7)
-
Step 200
200
#9FE8EF
oklch(88.5% 0.073 203.5)
-
Step 300
300 (this color)
#39E0EE
oklch(83.1% 0.131 203.6)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#39E0EE 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) | #CED6EF | 0.131 |
| Deuteranopia (no green cones) | #B5C4EF | 0.121 |
| Tritanopia (no blue cones) | #00E9E4 | 0.034 |
| Achromatopsia (no color) | #CCCCCC | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39E0EE
#39E0EE
oklch(83.1% 0.131 203.6)
- #FFB0AB
#FFB0AB
oklch(83.1% 0.093 23.3)
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 #39E0EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.027
- Turquoise #40E0D0 ΔE 0.043
- Robin's Egg #6DEDFD ΔE 0.052
- Medium Turquoise #48D1CC ΔE 0.053
- Bright Light Blue #26F7FD ΔE 0.061
- Dark Turquoise #00CED1 ΔE 0.061
- Vivid Sky Blue #4CC9F0 ΔE 0.065
- Sky Blue #87CEEB ΔE 0.065
Use #39E0EE 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.