#309797
Closest named color: Sea (#3C9992). oklch(61.9% 0.092 195), rgb(48, 151, 151).
Aa
Black text reads best on this color (5.99:1).
About this color
#309797 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.092 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.013 away. Black text reads best on it, at 5.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #309797 |
| RGB | rgb(48, 151, 151) |
| HSL | hsl(180, 52%, 39%) |
| OKLCH | oklch(61.9% 0.092 195) |
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 #309797 | 3.50:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #309797 | 5.99:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #309797 text on white | 3.50:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #309797 text on black | 5.99:1 | AA | Lc -39.4 | Non-text elements, placeholder text |
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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C7DFDE
oklch(88.6% 0.026 193.6)
-
Step 300
300
#A0CAC9
oklch(80.9% 0.044 194.5)
-
Step 400
400
#68AFAE
oklch(70.7% 0.072 194.5)
-
Step 500
500 (this color)
#309797
oklch(61.9% 0.092 195)
-
Step 600
600
#008484
oklch(55.5% 0.095 194.8)
-
Step 700
700
#006F6F
oklch(49% 0.084 194.8)
-
Step 800
800
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#0C4B4B
oklch(37.6% 0.059 194.9)
-
Step 950
950
#0B2C2C
oklch(26.9% 0.038 195.2)
#309797 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) | #8D9097 | 0.095 |
| Deuteranopia (no green cones) | #7D8498 | 0.089 |
| Tritanopia (no blue cones) | #009C97 | 0.019 |
| Achromatopsia (no color) | #898989 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309797
#309797
oklch(61.9% 0.092 195)
- #B66E74
#B66E74
oklch(61.8% 0.092 14.7)
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 #309797, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.013
- Teal Green #0A9396 ΔE 0.020
- Blue Green #0F9B8E ΔE 0.024
- Persian Green #2A9D8F ΔE 0.025
- Dusty Teal #4C9085 ΔE 0.031
- Dark Cyan #008B8B ΔE 0.043
- Grey Teal #5E9B8A ΔE 0.044
- Dull Teal #5F9E8F ΔE 0.047
Use #309797 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.