#309B95
Closest named color: Sea (#3C9992). oklch(62.9% 0.095 189.6), rgb(48, 155, 149).
Aa
Black text reads best on this color (6.24:1).
About this color
#309B95 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.095 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.008 away. Black text reads best on it, at 6.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.24:1 |
| White text | 3.36:1 |
Values
| HEX | #309B95 |
| RGB | rgb(48, 155, 149) |
| HSL | hsl(177, 53%, 40%) |
| OKLCH | oklch(62.9% 0.095 189.6) |
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 #309B95 | 3.36:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #309B95 | 6.24:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #309B95 text on white | 3.36:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #309B95 text on black | 6.24:1 | AA | Lc -41.0 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEC
oklch(93.6% 0.014 191.4)
-
Step 200
200
#C7DFDD
oklch(88.5% 0.026 190.6)
-
Step 300
300
#9FCBC7
oklch(81% 0.047 189.4)
-
Step 400
400
#66B0AA
oklch(70.7% 0.075 188.9)
-
Step 500
500 (this color)
#309B95
oklch(62.9% 0.095 189.6)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#084C49
oklch(37.7% 0.062 190.1)
-
Step 950
950
#0A2D2A
oklch(27.1% 0.04 187.1)
#309B95 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) | #929395 | 0.100 |
| Deuteranopia (no green cones) | #828796 | 0.095 |
| Tritanopia (no blue cones) | #009F99 | 0.015 |
| Achromatopsia (no color) | #8C8C8C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309B95
#309B95
oklch(62.9% 0.095 189.6)
- #BA707C
#BA707C
oklch(62.9% 0.095 9.7)
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 #309B95, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.008
- Persian Green #2A9D8F ΔE 0.013
- Blue Green #0F9B8E ΔE 0.017
- Teal Green #0A9396 ΔE 0.030
- Dusty Teal #4C9085 ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.037
- Dull Teal #5F9E8F ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.043
Use #309B95 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.