#397B5E
Closest named color: Bluegreen (#017A79). oklch(53.1% 0.082 162.7), rgb(57, 123, 94).
Aa
White text reads best on this color (5.03:1).
About this color
#397B5E is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.082 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.047 away. White text reads best on it, at 5.03:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.16:1 |
| White text | 5.03:1 |
Values
| HEX | #397B5E |
| RGB | rgb(57, 123, 94) |
| HSL | hsl(154, 37%, 35%) |
| OKLCH | oklch(53.1% 0.082 162.7) |
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 #397B5E | 5.03:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #397B5E | 4.16:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #397B5E text on white | 5.03:1 | AA | Lc 74.6 | Content text, not long reading |
| #397B5E text on black | 4.16:1 | AA large text | Lc -27.1 | 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
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CEDED5
oklch(88.6% 0.021 161.4)
-
Step 300
300
#ACC9BA
oklch(81% 0.038 163)
-
Step 400
400
#7FAD96
oklch(70.8% 0.06 162.7)
-
Step 500
500
#5D987C
oklch(63.1% 0.075 162.7)
-
Step 600
600 (this color)
#397B5E
oklch(53.1% 0.082 162.7)
-
Step 700
700
#326E54
oklch(49% 0.076 163)
-
Step 800
800
#2A5A45
oklch(42.7% 0.064 163.2)
-
Step 900
900
#274A3A
oklch(37.7% 0.05 163)
-
Step 950
950
#182B22
oklch(26.9% 0.03 163)
#397B5E 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) | #79735C | 0.080 |
| Deuteranopia (no green cones) | #6F6C60 | 0.077 |
| Tritanopia (no blue cones) | #227B73 | 0.034 |
| Achromatopsia (no color) | #6F6F6F | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397B5E
#397B5E
oklch(53.1% 0.082 162.7)
- #8D5879
#8D5879
oklch(53% 0.083 342.4)
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 #397B5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.047
- Dark Sage #598556 ΔE 0.050
- Teal #008080 ΔE 0.051
- Dark Aquamarine #017371 ΔE 0.052
- Sea Green #2E8B57 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.055
- Jungle Green #048243 ΔE 0.058
- Deep Aqua #08787F ΔE 0.058
Use #397B5E 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.