#309E93
Closest named color: Persian Green (#2A9D8F). oklch(63.6% 0.098 185.4), rgb(48, 158, 147).
Aa
Black text reads best on this color (6.43:1).
About this color
#309E93 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.098 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.007 away. Black text reads best on it, at 6.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.43:1 |
| White text | 3.26:1 |
Values
| HEX | #309E93 |
| RGB | rgb(48, 158, 147) |
| HSL | hsl(174, 53%, 40%) |
| OKLCH | oklch(63.6% 0.098 185.4) |
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 #309E93 | 3.26:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #309E93 | 6.43:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #309E93 text on white | 3.26:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #309E93 text on black | 6.43:1 | AA | Lc -42.1 | 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
#E0EDEB
oklch(93.6% 0.014 185.9)
-
Step 200
200
#C7DFDB
oklch(88.5% 0.026 184.7)
-
Step 300
300
#9ECBC5
oklch(80.8% 0.048 186.2)
-
Step 400
400
#65B0A7
oklch(70.6% 0.076 185.7)
-
Step 500
500 (this color)
#309E93
oklch(63.6% 0.098 185.4)
-
Step 600
600
#00857B
oklch(55.5% 0.097 185.6)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#064C46
oklch(37.6% 0.064 185.6)
-
Step 950
950
#092D29
oklch(27.1% 0.041 184.6)
#309E93 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) | #969593 | 0.105 |
| Deuteranopia (no green cones) | #868994 | 0.099 |
| Tritanopia (no blue cones) | #00A29A | 0.016 |
| Achromatopsia (no color) | #8E8E8E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309E93
#309E93
oklch(63.6% 0.098 185.4)
- #BD7182
#BD7182
oklch(63.6% 0.098 5.8)
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 #309E93, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.007
- Sea #3C9992 ΔE 0.015
- Blue Green #0F9B8E ΔE 0.018
- Grey Teal #5E9B8A ΔE 0.034
- Dull Teal #5F9E8F ΔE 0.035
- Teal Green #0A9396 ΔE 0.039
- Dusty Teal #4C9085 ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.044
Use #309E93 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.