#397B59
Closest named color: Dark Sage (#598556). oklch(53% 0.087 158.9), rgb(57, 123, 89).
Aa
White text reads best on this color (5.05:1).
About this color
#397B59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.087 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.049 away. White text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #397B59 |
| RGB | rgb(57, 123, 89) |
| HSL | hsl(149, 37%, 35%) |
| OKLCH | oklch(53% 0.087 158.9) |
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 #397B59 | 5.05:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #397B59 | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #397B59 text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #397B59 text on black | 4.15:1 | AA large text | Lc -27.0 | 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 600.
-
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
#5D9978
oklch(63.2% 0.081 158.9)
-
Step 600
600 (this color)
#397B59
oklch(53% 0.087 158.9)
-
Step 700
700
#326F50
oklch(49.2% 0.081 159.1)
-
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)
#397B59 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) | #7A7357 | 0.082 |
| Deuteranopia (no green cones) | #706C5B | 0.079 |
| Tritanopia (no blue cones) | #257A72 | 0.040 |
| Achromatopsia (no color) | #6F6F6F | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397B59
#397B59
oklch(53% 0.087 158.9)
- #8D577C
#8D577C
oklch(53% 0.087 339.5)
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 #397B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.049
- Sea Green #2E8B57 ΔE 0.051
- Jungle Green #048243 ΔE 0.051
- Bluegreen #017A79 ΔE 0.053
- Military Green #667C3E ΔE 0.057
- Dark Aquamarine #017371 ΔE 0.057
- Teal #008080 ΔE 0.057
- Dark Moss Green #606C38 ΔE 0.059
Use #397B59 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.