#39A1BB
Closest named color: Turquoise Blue (#06B1C4). oklch(66.1% 0.1 217.8), rgb(57, 161, 187).
Aa
Black text reads best on this color (6.98:1).
About this color
#39A1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.100 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.044 away. Black text reads best on it, at 6.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.98:1 |
| White text | 3.00:1 |
Values
| HEX | #39A1BB |
| RGB | rgb(57, 161, 187) |
| HSL | hsl(192, 53%, 48%) |
| OKLCH | oklch(66.1% 0.1 217.8) |
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 #39A1BB | 3.00:1 | AA large text | Lc -61.8 | Content text, not long reading |
| Black text on #39A1BB | 6.98:1 | AA | Lc 47.6 | Large or bold text, headings |
| #39A1BB text on white | 3.00:1 | AA large text | Lc 56.4 | Large or bold text, headings |
| #39A1BB text on black | 6.98:1 | AA | Lc -45.4 | 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 500.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C6DEE5
oklch(88.5% 0.027 217.2)
-
Step 300
300
#9EC9D6
oklch(80.9% 0.049 218.2)
-
Step 400
400
#64ADC1
oklch(70.7% 0.078 217.5)
-
Step 500
500 (this color)
#39A1BB
oklch(66.1% 0.1 217.8)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#054A59
oklch(37.8% 0.066 217.8)
-
Step 950
950
#092B34
oklch(27% 0.041 219)
#39A1BB 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) | #909CBC | 0.086 |
| Deuteranopia (no green cones) | #7E8FBB | 0.078 |
| Tritanopia (no blue cones) | #00AAA9 | 0.047 |
| Achromatopsia (no color) | #959595 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39A1BB
#39A1BB
oklch(66.1% 0.1 217.8)
- #C77C65
#C77C65
oklch(66% 0.1 37.8)
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 #39A1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.045
- Greyblue #77A1B5 ΔE 0.054
- Sea #3C9992 ΔE 0.060
- Light Sea Green #20B2AA ΔE 0.063
- Faded Blue #658CBB ΔE 0.066
- Dull Teal #5F9E8F ΔE 0.066
- Persian Green #2A9D8F ΔE 0.067
Use #39A1BB 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.