#408E59
Closest named color: Sea Green (#2E8B57). oklch(58.3% 0.112 151.9), rgb(64, 142, 89).
Aa
Black text reads best on this color (5.23:1).
About this color
#408E59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.112 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.017 away. Black text reads best on it, at 5.23:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #408E59 |
| RGB | rgb(64, 142, 89) |
| HSL | hsl(139, 38%, 40%) |
| OKLCH | oklch(58.3% 0.112 151.9) |
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 #408E59 | 4.01:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #408E59 | 5.23:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #408E59 text on white | 4.01:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #408E59 text on black | 5.23:1 | AA | Lc -34.5 | 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
#CCDFD0
oklch(88.5% 0.029 151.9)
-
Step 300
300
#A9CBB1
oklch(81% 0.051 152.2)
-
Step 400
400
#7AAF88
oklch(70.6% 0.08 152.2)
-
Step 500
500
#559B6A
oklch(63% 0.103 152.2)
-
Step 600
600 (this color)
#408E59
oklch(58.3% 0.112 151.9)
-
Step 700
700
#297142
oklch(49.1% 0.104 151.9)
-
Step 800
800
#245C36
oklch(42.6% 0.086 151.5)
-
Step 900
900
#234C2F
oklch(37.8% 0.068 151.4)
-
Step 950
950
#152C1C
oklch(26.9% 0.042 152.5)
#408E59 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) | #8E8355 | 0.096 |
| Deuteranopia (no green cones) | #847C5C | 0.095 |
| Tritanopia (no blue cones) | #2D8C80 | 0.059 |
| Achromatopsia (no color) | #7F7F7F | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #408E59
#408E59
oklch(58.3% 0.112 151.9)
- #A26199
#A26199
oklch(58.4% 0.113 332.1)
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 #408E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.017
- Light Forest Green #4F9153 ΔE 0.019
- Viridian #1E9167 ΔE 0.023
- Fern Green #548D44 ΔE 0.027
- Dark Sage #598556 ΔE 0.033
- Ocean Green #3D9973 ΔE 0.041
- Moss Green #658B38 ΔE 0.045
- Swamp #698339 ΔE 0.051
Use #408E59 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.