#39BBB9
Closest named color: Topaz (#13BBAF). oklch(72.3% 0.11 193.5), rgb(57, 187, 185).
Aa
Black text reads best on this color (8.98:1).
About this color
#39BBB9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.110 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.021 away. Black text reads best on it, at 8.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.98:1 |
| White text | 2.33:1 |
Values
| HEX | #39BBB9 |
| RGB | rgb(57, 187, 185) |
| HSL | hsl(179, 53%, 48%) |
| OKLCH | oklch(72.3% 0.11 193.5) |
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 #39BBB9 | 2.33:1 | Fails | Lc -50.6 | Large or bold text, headings |
| Black text on #39BBB9 | 8.98:1 | AAA | Lc 58.3 | Large or bold text, headings |
| #39BBB9 text on white | 2.33:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #39BBB9 text on black | 8.98:1 | AAA | Lc -56.4 | 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 400.
-
Step 50
50
#EFF7F7
oklch(97% 0.008 197)
-
Step 100
100
#DCEEED
oklch(93.6% 0.019 192.8)
-
Step 200
200
#BDE2E0
oklch(88.6% 0.039 192.4)
-
Step 300
300
#8BCFCD
oklch(80.9% 0.069 193.5)
-
Step 400
400 (this color)
#39BBB9
oklch(72.3% 0.11 193.5)
-
Step 500
500
#009D9C
oklch(63% 0.108 194)
-
Step 600
600
#008483
oklch(55.5% 0.095 193.8)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#002D2D
oklch(26.9% 0.046 194.8)
#39BBB9 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) | #AFB2B9 | 0.114 |
| Deuteranopia (no green cones) | #9CA3BA | 0.108 |
| Tritanopia (no blue cones) | #00C1BA | 0.020 |
| Achromatopsia (no color) | #A9A9A9 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39BBB9
#39BBB9
oklch(72.3% 0.11 193.5)
- #E18891
#E18891
oklch(72.3% 0.109 13.6)
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 #39BBB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.021
- Light Sea Green #20B2AA ΔE 0.034
- Turquoise Blue #06B1C4 ΔE 0.041
- Greeny Blue #42B395 ΔE 0.050
- Dark Turquoise #00CED1 ΔE 0.054
- Medium Turquoise #48D1CC ΔE 0.064
- Medium Aquamarine #66CDAA ΔE 0.071
- Green Blue #01C08D ΔE 0.073
Use #39BBB9 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.