#37A593
Closest named color: Persian Green (#2A9D8F). oklch(65.5% 0.102 179.9), rgb(55, 165, 147).
Aa
Black text reads best on this color (6.96:1).
About this color
#37A593 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.102 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.026 away. Black text reads best on it, at 6.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.96:1 |
| White text | 3.01:1 |
Values
| HEX | #37A593 |
| RGB | rgb(55, 165, 147) |
| HSL | hsl(170, 50%, 43%) |
| OKLCH | oklch(65.5% 0.102 179.9) |
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 #37A593 | 3.01:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #37A593 | 6.96:1 | AA | Lc 47.5 | Large or bold text, headings |
| #37A593 text on white | 3.01:1 | AA large text | Lc 56.6 | Large or bold text, headings |
| #37A593 text on black | 6.96:1 | AA | Lc -45.2 | 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 500.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C6DFDA
oklch(88.4% 0.027 182.3)
-
Step 300
300
#9ECCC2
oklch(81% 0.05 180.2)
-
Step 400
400
#65B1A2
oklch(70.7% 0.079 179.7)
-
Step 500
500 (this color)
#37A593
oklch(65.5% 0.102 179.9)
-
Step 600
600
#008675
oklch(55.5% 0.101 179.7)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#054D43
oklch(37.8% 0.066 180)
-
Step 950
950
#092D27
oklch(27% 0.042 179.7)
#37A593 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) | #9E9B92 | 0.108 |
| Deuteranopia (no green cones) | #8E9095 | 0.102 |
| Tritanopia (no blue cones) | #00A89F | 0.020 |
| Achromatopsia (no color) | #949494 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A593
#37A593
oklch(65.5% 0.102 179.9)
- #C4768E
#C4768E
oklch(65.7% 0.102 0.4)
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 #37A593, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.026
- Dull Teal #5F9E8F ΔE 0.033
- Sea #3C9992 ΔE 0.035
- Blue Green #0F9B8E ΔE 0.036
- Grey Teal #5E9B8A ΔE 0.036
- Light Sea Green #20B2AA ΔE 0.042
- Greeny Blue #42B395 ΔE 0.043
- Cadet Blue #5F9EA0 ΔE 0.045
Use #37A593 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.