#418B56
Closest named color: Sea Green (#2E8B57). oklch(57.5% 0.11 150.8), rgb(65, 139, 86).
Aa
Black text reads best on this color (5.05:1).
About this color
#418B56 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.110 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.014 away. Black text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #418B56 |
| RGB | rgb(65, 139, 86) |
| HSL | hsl(137, 36%, 40%) |
| OKLCH | oklch(57.5% 0.11 150.8) |
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 #418B56 | 4.15:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #418B56 | 5.05:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #418B56 text on white | 4.15:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #418B56 text on black | 5.05:1 | AA | Lc -33.3 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CDDFD0
oklch(88.6% 0.028 150.4)
-
Step 300
300
#AACAB0
oklch(80.8% 0.05 150.6)
-
Step 400
400
#7CAF87
oklch(70.7% 0.079 150.7)
-
Step 500
500
#589B69
oklch(63.1% 0.102 150.8)
-
Step 600
600 (this color)
#418B56
oklch(57.5% 0.11 150.8)
-
Step 700
700
#2C7141
oklch(49.2% 0.103 150.8)
-
Step 800
800
#265C36
oklch(42.7% 0.085 150.9)
-
Step 900
900
#244B2F
oklch(37.6% 0.066 151.3)
-
Step 950
950
#162C1C
oklch(26.9% 0.041 151.6)
#418B56 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) | #8C8152 | 0.093 |
| Deuteranopia (no green cones) | #817959 | 0.092 |
| Tritanopia (no blue cones) | #30897E | 0.060 |
| Achromatopsia (no color) | #7C7C7C | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #418B56
#418B56
oklch(57.5% 0.11 150.8)
- #9E5F97
#9E5F97
oklch(57.5% 0.111 331)
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 #418B56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.014
- Light Forest Green #4F9153 ΔE 0.025
- Viridian #1E9167 ΔE 0.027
- Dark Sage #598556 ΔE 0.028
- Fern Green #548D44 ΔE 0.028
- Moss Green #658B38 ΔE 0.045
- Swamp #698339 ΔE 0.047
- Ocean Green #3D9973 ΔE 0.048
Use #418B56 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.