#39B4D9
Closest named color: Turquoise Blue (#06B1C4). oklch(71.9% 0.117 222.5), rgb(57, 180, 217).
Aa
Black text reads best on this color (8.70:1).
About this color
#39B4D9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.117 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.037 away. Black text reads best on it, at 8.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.70:1 |
| White text | 2.41:1 |
Values
| HEX | #39B4D9 |
| RGB | rgb(57, 180, 217) |
| HSL | hsl(194, 68%, 54%) |
| OKLCH | oklch(71.9% 0.117 222.5) |
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 #39B4D9 | 2.41:1 | Fails | Lc -52.1 | Large or bold text, headings |
| Black text on #39B4D9 | 8.70:1 | AAA | Lc 56.9 | Large or bold text, headings |
| #39B4D9 text on white | 2.41:1 | Fails | Lc 47.1 | Large or bold text, headings |
| #39B4D9 text on black | 8.70:1 | AAA | Lc -54.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DBEDF4
oklch(93.5% 0.021 223)
-
Step 200
200
#BDE0ED
oklch(88.6% 0.041 222.3)
-
Step 300
300
#8BCCE3
oklch(81% 0.073 222.2)
-
Step 400
400 (this color)
#39B4D9
oklch(71.9% 0.117 222.5)
-
Step 500
500
#0098BC
oklch(63% 0.117 222.5)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586E
oklch(42.7% 0.079 222.3)
-
Step 900
900
#00495C
oklch(37.6% 0.07 222.6)
-
Step 950
950
#002C38
oklch(27.2% 0.05 221.4)
#39B4D9 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) | #9FB0DB | 0.094 |
| Deuteranopia (no green cones) | #89A0D9 | 0.083 |
| Tritanopia (no blue cones) | #00BFC0 | 0.058 |
| Achromatopsia (no color) | #A7A7A7 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B4D9
#39B4D9
oklch(71.9% 0.117 222.5)
- #E28B68
#E28B68
oklch(72% 0.117 42.5)
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 #39B4D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.037
- Deep Sky Blue #00BFFF ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.064
- Greyblue #77A1B5 ΔE 0.072
- Light Sea Green #20B2AA ΔE 0.072
- Bright Sky Blue #02CCFE ΔE 0.073
- Topaz #13BBAF ΔE 0.074
- Dark Turquoise #00CED1 ΔE 0.078
Use #39B4D9 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.