#37755F
Closest named color: Dark Aquamarine (#017371). oklch(51.4% 0.074 167.8), rgb(55, 117, 95).
Aa
White text reads best on this color (5.42:1).
About this color
#37755F is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.074 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.038 away. White text reads best on it, at 5.42:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.87:1 |
| White text | 5.42:1 |
Values
| HEX | #37755F |
| RGB | rgb(55, 117, 95) |
| HSL | hsl(159, 36%, 34%) |
| OKLCH | oklch(51.4% 0.074 167.8) |
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 #37755F | 5.42:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #37755F | 3.87:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #37755F text on white | 5.42:1 | AA | Lc 76.9 | Fine for body text |
| #37755F text on black | 3.87:1 | AA large text | Lc -24.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#ABC8BC
oklch(80.8% 0.035 168.5)
-
Step 400
400
#7EAC9A
oklch(70.6% 0.056 168.6)
-
Step 500
500
#5B9881
oklch(63.1% 0.073 168)
-
Step 600
600
#3E826A
oklch(55.5% 0.079 168)
-
Step 700
700 (this color)
#37755F
oklch(51.4% 0.074 167.8)
-
Step 800
800
#295A48
oklch(42.8% 0.062 167.1)
-
Step 900
900
#264A3D
oklch(37.8% 0.048 168.4)
-
Step 950
950
#172B24
oklch(26.9% 0.029 169.8)
#37755F 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) | #726E5E | 0.074 |
| Deuteranopia (no green cones) | #696760 | 0.072 |
| Tritanopia (no blue cones) | #1F756F | 0.028 |
| Achromatopsia (no color) | #6A6A6A | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37755F
#37755F
oklch(51.4% 0.074 167.8)
- #87566F
#87566F
oklch(51.5% 0.073 348)
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 #37755F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.038
- Bluegreen #017A79 ΔE 0.041
- Deep Turquoise #017374 ΔE 0.042
- Deep Aqua #08787F ΔE 0.050
- Teal #008080 ΔE 0.052
- Dark Aqua #05696B ΔE 0.057
- Dark Moss Green #606C38 ΔE 0.061
- Dark Green Blue #1F6357 ΔE 0.062
Use #37755F 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.