#338F5C
Closest named color: Sea Green (#2E8B57). oklch(58.2% 0.117 155.5), rgb(51, 143, 92).
Aa
Black text reads best on this color (5.22:1).
About this color
#338F5C is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.117 and its hue 156°. 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 5.22:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.22:1 |
| White text | 4.01:1 |
Values
| HEX | #338F5C |
| RGB | rgb(51, 143, 92) |
| HSL | hsl(147, 47%, 38%) |
| OKLCH | oklch(58.2% 0.117 155.5) |
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 #338F5C | 4.01:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #338F5C | 5.22:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #338F5C text on white | 4.01:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #338F5C text on black | 5.22:1 | 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
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CBDFD1
oklch(88.5% 0.029 155.2)
-
Step 300
300
#A6CBB2
oklch(80.8% 0.053 155.5)
-
Step 400
400
#74B18A
oklch(70.8% 0.085 155.5)
-
Step 500
500
#4C9D6D
oklch(63.2% 0.108 155.5)
-
Step 600
600 (this color)
#338F5C
oklch(58.2% 0.117 155.5)
-
Step 700
700
#1A7245
oklch(49% 0.108 155.7)
-
Step 800
800
#1A5D39
oklch(42.7% 0.09 155.6)
-
Step 900
900
#1D4C31
oklch(37.6% 0.07 155.6)
-
Step 950
950
#122D1D
oklch(27% 0.045 155.8)
#338F5C 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) | #8E8459 | 0.105 |
| Deuteranopia (no green cones) | #827B5F | 0.103 |
| Tritanopia (no blue cones) | #048E82 | 0.057 |
| Achromatopsia (no color) | #7F7F7F | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338F5C
#338F5C
oklch(58.2% 0.117 155.5)
- #A55E96
#A55E96
oklch(58.2% 0.118 335.3)
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 #338F5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.014
- Viridian #1E9167 ΔE 0.015
- Light Forest Green #4F9153 ΔE 0.026
- Fern Green #548D44 ΔE 0.034
- Dark Sage #598556 ΔE 0.040
- Ocean Green #3D9973 ΔE 0.040
- Moss Green #658B38 ΔE 0.053
- Jungle Green #048243 ΔE 0.054
Use #338F5C 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.