#39BBB0
Closest named color: Topaz (#13BBAF). oklch(72% 0.111 186.8), rgb(57, 187, 176).
Aa
Black text reads best on this color (8.90:1).
About this color
#39BBB0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.111 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.013 away. Black text reads best on it, at 8.90:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.90:1 |
| White text | 2.35:1 |
Values
| HEX | #39BBB0 |
| RGB | rgb(57, 187, 176) |
| HSL | hsl(175, 53%, 48%) |
| OKLCH | oklch(72% 0.111 186.8) |
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 #39BBB0 | 2.35:1 | Fails | Lc -51.0 | Large or bold text, headings |
| Black text on #39BBB0 | 8.90:1 | AAA | Lc 57.9 | Large or bold text, headings |
| #39BBB0 text on white | 2.35:1 | Fails | Lc 46.1 | Large or bold text, headings |
| #39BBB0 text on black | 8.90:1 | AAA | Lc -56.0 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DCEEEC
oklch(93.5% 0.019 188.8)
-
Step 200
200
#BEE2DD
oklch(88.5% 0.038 186.3)
-
Step 300
300
#8CD0C8
oklch(81% 0.07 186.6)
-
Step 400
400 (this color)
#39BBB0
oklch(72% 0.111 186.8)
-
Step 500
500
#009F94
oklch(63.2% 0.111 186.2)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#39BBB0 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) | #B1B1B0 | 0.118 |
| Deuteranopia (no green cones) | #9EA3B1 | 0.111 |
| Tritanopia (no blue cones) | #00BFB7 | 0.016 |
| Achromatopsia (no color) | #A9A9A9 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39BBB0
#39BBB0
oklch(72% 0.111 186.8)
- #E08699
#E08699
oklch(72% 0.112 6.6)
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 #39BBB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.013
- Light Sea Green #20B2AA ΔE 0.030
- Greeny Blue #42B395 ΔE 0.038
- Turquoise Blue #06B1C4 ΔE 0.050
- Dark Turquoise #00CED1 ΔE 0.059
- Green Blue #01C08D ΔE 0.061
- Medium Aquamarine #66CDAA ΔE 0.066
- Medium Turquoise #48D1CC ΔE 0.067
Use #39BBB0 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.