#39B3A4
Closest named color: Light Sea Green (#20B2AA). oklch(69.7% 0.108 183.3), rgb(57, 179, 164).
Aa
Black text reads best on this color (8.15:1).
About this color
#39B3A4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.108 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.014 away. Black text reads best on it, at 8.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.15:1 |
| White text | 2.57:1 |
Values
| HEX | #39B3A4 |
| RGB | rgb(57, 179, 164) |
| HSL | hsl(173, 52%, 46%) |
| OKLCH | oklch(69.7% 0.108 183.3) |
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 #39B3A4 | 2.57:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #39B3A4 | 8.15:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #39B3A4 text on white | 2.57:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #39B3A4 text on black | 8.15:1 | AAA | Lc -51.9 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DCEEEB
oklch(93.5% 0.019 184.9)
-
Step 200
200
#BFE2DB
oklch(88.6% 0.038 182)
-
Step 300
300
#8FCFC5
oklch(80.8% 0.067 183.8)
-
Step 400
400 (this color)
#39B3A4
oklch(69.7% 0.108 183.3)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#39B3A4 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) | #ABA9A3 | 0.115 |
| Deuteranopia (no green cones) | #999CA5 | 0.108 |
| Tritanopia (no blue cones) | #00B7AE | 0.018 |
| Achromatopsia (no color) | #A1A1A1 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B3A4
#39B3A4
oklch(69.7% 0.108 183.3)
- #D58096
#D58096
oklch(69.6% 0.108 3.5)
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 #39B3A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.014
- Greeny Blue #42B395 ΔE 0.022
- Topaz #13BBAF ΔE 0.024
- Turquoise Blue #06B1C4 ΔE 0.050
- Tea #65AB7C ΔE 0.056
- Dull Teal #5F9E8F ΔE 0.060
- Green Blue #01C08D ΔE 0.060
- Cadet Blue #5F9EA0 ΔE 0.062
Use #39B3A4 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.