#438A57
Closest named color: Sea Green (#2E8B57). oklch(57.3% 0.107 150.9), rgb(67, 138, 87).
Aa
Black text reads best on this color (5.01:1).
About this color
#438A57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.107 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 0.015 away. Black text reads best on it, at 5.01:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.01:1 |
| White text | 4.19:1 |
Values
| HEX | #438A57 |
| RGB | rgb(67, 138, 87) |
| HSL | hsl(137, 35%, 40%) |
| OKLCH | oklch(57.3% 0.107 150.9) |
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 #438A57 | 4.19:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #438A57 | 5.01:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #438A57 text on white | 4.19:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #438A57 text on black | 5.01:1 | AA | Lc -33.0 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E4EDE5
oklch(93.7% 0.014 148.8)
-
Step 200
200
#CDDED0
oklch(88.4% 0.026 150.7)
-
Step 300
300
#ABCAB1
oklch(80.9% 0.048 150.9)
-
Step 400
400
#7DAF88
oklch(70.8% 0.078 150.8)
-
Step 500
500
#5A9A6B
oklch(63% 0.097 151.3)
-
Step 600
600 (this color)
#438A57
oklch(57.3% 0.107 150.9)
-
Step 700
700
#2F7043
oklch(49% 0.098 151.2)
-
Step 800
800
#285B37
oklch(42.6% 0.081 151.1)
-
Step 900
900
#264B30
oklch(37.7% 0.063 151.1)
-
Step 950
950
#172C1C
oklch(27% 0.04 150.6)
#438A57 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) | #8B8054 | 0.091 |
| Deuteranopia (no green cones) | #80795A | 0.088 |
| Tritanopia (no blue cones) | #34887D | 0.058 |
| Achromatopsia (no color) | #7C7C7C | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438A57
#438A57
oklch(57.3% 0.107 150.9)
- #9C6095
#9C6095
oklch(57.4% 0.106 331.1)
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 #438A57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.015
- Dark Sage #598556 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.027
- Viridian #1E9167 ΔE 0.028
- Fern Green #548D44 ΔE 0.030
- Moss Green #658B38 ΔE 0.046
- Swamp #698339 ΔE 0.046
- Ocean Green #3D9973 ΔE 0.049
Use #438A57 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.