#37A193
Closest named color: Persian Green (#2A9D8F). oklch(64.5% 0.098 182.8), rgb(55, 161, 147).
Aa
Black text reads best on this color (6.68:1).
About this color
#37A193 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.098 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.015 away. Black text reads best on it, at 6.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.68:1 |
| White text | 3.14:1 |
Values
| HEX | #37A193 |
| RGB | rgb(55, 161, 147) |
| HSL | hsl(172, 49%, 42%) |
| OKLCH | oklch(64.5% 0.098 182.8) |
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 #37A193 | 3.14:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #37A193 | 6.68:1 | AA | Lc 45.9 | Large or bold text, headings |
| #37A193 text on white | 3.14:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #37A193 text on black | 6.68:1 | AA | Lc -43.5 | 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
#9FCBC3
oklch(80.8% 0.048 182.7)
-
Step 400
400
#66B0A5
oklch(70.6% 0.076 183.5)
-
Step 500
500 (this color)
#37A193
oklch(64.5% 0.098 182.8)
-
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
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#084C45
oklch(37.6% 0.063 184)
-
Step 950
950
#0A2D28
oklch(27.1% 0.041 182)
#37A193 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) | #9A9893 | 0.105 |
| Deuteranopia (no green cones) | #8A8C94 | 0.099 |
| Tritanopia (no blue cones) | #00A49D | 0.019 |
| Achromatopsia (no color) | #919191 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A193
#37A193
oklch(64.5% 0.098 182.8)
- #BF7488
#BF7488
oklch(64.5% 0.097 2.9)
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 #37A193, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.015
- Sea #3C9992 ΔE 0.023
- Blue Green #0F9B8E ΔE 0.026
- Dull Teal #5F9E8F ΔE 0.030
- Grey Teal #5E9B8A ΔE 0.031
- Cadet Blue #5F9EA0 ΔE 0.041
- Ocean Green #3D9973 ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.048
Use #37A193 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.