#37775C
Closest named color: Dark Aquamarine (#017371). oklch(51.9% 0.079 163.7), rgb(55, 119, 92).
Aa
White text reads best on this color (5.30:1).
About this color
#37775C is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.079 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.045 away. White text reads best on it, at 5.30:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #37775C |
| RGB | rgb(55, 119, 92) |
| HSL | hsl(155, 37%, 34%) |
| OKLCH | oklch(51.9% 0.079 163.7) |
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 #37775C | 5.30:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #37775C | 3.95:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #37775C text on white | 5.30:1 | AA | Lc 76.2 | Fine for body text |
| #37775C text on black | 3.95:1 | AA large text | Lc -25.5 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#ABC9BA
oklch(80.9% 0.038 163.8)
-
Step 400
400
#7DAD96
oklch(70.7% 0.061 163.6)
-
Step 500
500
#5A997C
oklch(63.2% 0.079 163.1)
-
Step 600
600
#3D8366
oklch(55.6% 0.085 164.1)
-
Step 700
700 (this color)
#37775C
oklch(51.9% 0.079 163.7)
-
Step 800
800
#285A45
oklch(42.6% 0.065 163.8)
-
Step 900
900
#254A3A
oklch(37.6% 0.051 164)
-
Step 950
950
#172B22
oklch(26.9% 0.031 164)
#37775C 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) | #756F5B | 0.078 |
| Deuteranopia (no green cones) | #6B685E | 0.076 |
| Tritanopia (no blue cones) | #20776F | 0.031 |
| Achromatopsia (no color) | #6B6B6B | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37775C
#37775C
oklch(51.9% 0.079 163.7)
- #895674
#895674
oklch(52% 0.079 344)
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 #37775C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.045
- Bluegreen #017A79 ΔE 0.045
- Deep Turquoise #017374 ΔE 0.049
- Teal #008080 ΔE 0.054
- Deep Aqua #08787F ΔE 0.055
- Dark Moss Green #606C38 ΔE 0.059
- Dark Olive Green #556B2F ΔE 0.060
- Dark Sage #598556 ΔE 0.061
Use #37775C 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.