#397555
Closest named color: Dark Aquamarine (#017371). oklch(51.3% 0.082 158.4), rgb(57, 117, 85).
Aa
White text reads best on this color (5.45:1).
About this color
#397555 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.082 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.051 away. White text reads best on it, at 5.45:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #397555 |
| RGB | rgb(57, 117, 85) |
| HSL | hsl(148, 34%, 34%) |
| OKLCH | oklch(51.3% 0.082 158.4) |
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 #397555 | 5.45:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #397555 | 3.84:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #397555 text on white | 5.45:1 | AA | Lc 77.1 | Fine for body text |
| #397555 text on black | 3.84:1 | AA large text | Lc -24.7 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CEDED4
oklch(88.6% 0.022 158.5)
-
Step 300
300
#ACC9B7
oklch(80.9% 0.04 158.1)
-
Step 400
400
#7FAD92
oklch(70.7% 0.063 158.5)
-
Step 500
500
#5D9977
oklch(63.2% 0.082 158.1)
-
Step 600
600
#418360
oklch(55.6% 0.088 158.5)
-
Step 700
700 (this color)
#397555
oklch(51.3% 0.082 158.4)
-
Step 800
800
#2B5A41
oklch(42.7% 0.067 158.5)
-
Step 900
900
#274A37
oklch(37.6% 0.053 158.7)
-
Step 950
950
#182B20
oklch(26.9% 0.032 157.9)
#397555 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) | #746D53 | 0.076 |
| Deuteranopia (no green cones) | #6B6757 | 0.074 |
| Tritanopia (no blue cones) | #28746C | 0.037 |
| Achromatopsia (no color) | #696969 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397555
#397555
oklch(51.3% 0.082 158.4)
- #855477
#855477
oklch(51.2% 0.081 338)
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 #397555, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.051
- Dark Olive Green #556B2F ΔE 0.051
- Dark Moss Green #606C38 ΔE 0.052
- Bluegreen #017A79 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.055
- Jungle Green #048243 ΔE 0.060
- Muddy Green #657432 ΔE 0.061
- Teal #008080 ΔE 0.063
Use #397555 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.