#39C4B2
Closest named color: Topaz (#13BBAF). oklch(74.3% 0.119 182.4), rgb(57, 196, 178).
Aa
Black text reads best on this color (9.71:1).
About this color
#39C4B2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.119 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.031 away. Black text reads best on it, at 9.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.71:1 |
| White text | 2.16:1 |
Values
| HEX | #39C4B2 |
| RGB | rgb(57, 196, 178) |
| HSL | hsl(172, 55%, 50%) |
| OKLCH | oklch(74.3% 0.119 182.4) |
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 #39C4B2 | 2.16:1 | Fails | Lc -46.8 | Large or bold text, headings |
| Black text on #39C4B2 | 9.71:1 | AAA | Lc 61.9 | Content text, not long reading |
| #39C4B2 text on white | 2.16:1 | Fails | Lc 42.1 | Non-text elements, placeholder text |
| #39C4B2 text on black | 9.71:1 | AAA | Lc -60.1 | Content text, not long reading |
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
#DBEFEB
oklch(93.6% 0.022 182.5)
-
Step 200
200
#BCE3DB
oklch(88.6% 0.042 181.5)
-
Step 300
300
#89D1C4
oklch(80.9% 0.075 181.7)
-
Step 400
400 (this color)
#39C4B2
oklch(74.3% 0.119 182.4)
-
Step 500
500
#009F8F
oklch(63.1% 0.113 182.5)
-
Step 600
600
#008678
oklch(55.6% 0.1 182.2)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#39C4B2 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) | #BBB9B1 | 0.126 |
| Deuteranopia (no green cones) | #A7AAB4 | 0.120 |
| Tritanopia (no blue cones) | #00C8BE | 0.019 |
| Achromatopsia (no color) | #B0B0B0 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39C4B2
#39C4B2
oklch(74.3% 0.119 182.4)
- #EA8BA5
#EA8BA5
oklch(74.4% 0.119 2.7)
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 #39C4B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.031
- Medium Aquamarine #66CDAA ΔE 0.044
- Dark Turquoise #00CED1 ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.047
- Greeny Blue #42B395 ΔE 0.053
- Light Sea Green #20B2AA ΔE 0.054
- Green Blue #01C08D ΔE 0.056
- Greenblue #23C48B ΔE 0.058
Use #39C4B2 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.