#37997F
Closest named color: Ocean Green (#3D9973). oklch(61.9% 0.099 172.2), rgb(55, 153, 127).
Aa
Black text reads best on this color (6.02:1).
About this color
#37997F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.099 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.017 away. Black text reads best on it, at 6.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.02:1 |
| White text | 3.48:1 |
Values
| HEX | #37997F |
| RGB | rgb(55, 153, 127) |
| HSL | hsl(164, 47%, 41%) |
| OKLCH | oklch(61.9% 0.099 172.2) |
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 #37997F | 3.48:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #37997F | 6.02:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #37997F text on white | 3.48:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #37997F text on black | 6.02:1 | AA | Lc -39.6 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C8DFD7
oklch(88.4% 0.027 172.8)
-
Step 300
300
#A1CBBD
oklch(80.8% 0.049 172.7)
-
Step 400
400
#6BB19B
oklch(70.8% 0.078 171.9)
-
Step 500
500 (this color)
#37997F
oklch(61.9% 0.099 172.2)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#114D3E
oklch(37.8% 0.065 172.2)
-
Step 950
950
#0D2D24
oklch(27% 0.041 171.7)
#37997F 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) | #948F7E | 0.103 |
| Deuteranopia (no green cones) | #868581 | 0.098 |
| Tritanopia (no blue cones) | #009A91 | 0.029 |
| Achromatopsia (no color) | #898989 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37997F
#37997F
oklch(61.9% 0.099 172.2)
- #B46C8C
#B46C8C
oklch(62% 0.1 352.3)
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 #37997F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.017
- Persian Green #2A9D8F ΔE 0.022
- Blue Green #0F9B8E ΔE 0.023
- Sea #3C9992 ΔE 0.030
- Dusty Teal #4C9085 ΔE 0.034
- Grey Teal #5E9B8A ΔE 0.039
- Viridian #1E9167 ΔE 0.042
- Dull Teal #5F9E8F ΔE 0.046
Use #37997F 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.