#398566
Closest named color: Sea Green (#2E8B57). oklch(56% 0.09 164), rgb(57, 133, 102).
Aa
Black text reads best on this color (4.72:1).
About this color
#398566 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.090 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.034 away. Black text reads best on it, at 4.72:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #398566 |
| RGB | rgb(57, 133, 102) |
| HSL | hsl(156, 40%, 37%) |
| OKLCH | oklch(56% 0.09 164) |
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 #398566 | 4.44:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #398566 | 4.72:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #398566 text on white | 4.44:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #398566 text on black | 4.72:1 | AA | Lc -31.0 | Non-text elements, placeholder text |
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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#AAC9BA
oklch(80.9% 0.039 164.6)
-
Step 400
400
#7AAE96
oklch(70.7% 0.065 164.3)
-
Step 500
500
#56997C
oklch(63% 0.082 164.3)
-
Step 600
600 (this color)
#398566
oklch(56% 0.09 164)
-
Step 700
700
#297054
oklch(49.2% 0.085 164)
-
Step 800
800
#245B45
oklch(42.7% 0.069 164.3)
-
Step 900
900
#234B3A
oklch(37.8% 0.055 164)
-
Step 950
950
#152C22
oklch(27.1% 0.035 164.2)
#398566 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) | #837C64 | 0.089 |
| Deuteranopia (no green cones) | #787468 | 0.086 |
| Tritanopia (no blue cones) | #19857C | 0.035 |
| Achromatopsia (no color) | #777777 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398566
#398566
oklch(56% 0.09 164)
- #9A5E81
#9A5E81
oklch(56% 0.091 344.5)
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 #398566, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.034
- Dark Sage #598556 ΔE 0.035
- Viridian #1E9167 ΔE 0.037
- Teal #008080 ΔE 0.051
- Dark Cyan #008B8B ΔE 0.053
- Slate Green #658D6D ΔE 0.054
- Light Forest Green #4F9153 ΔE 0.055
- Dusty Teal #4C9085 ΔE 0.055
Use #398566 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.