#338757
Closest named color: Sea Green (#2E8B57). oklch(55.9% 0.111 155.1), rgb(51, 135, 87).
Aa
Black text reads best on this color (4.74:1).
About this color
#338757 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.111 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.012 away. Black text reads best on it, at 4.74:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.74:1 |
| White text | 4.42:1 |
Values
| HEX | #338757 |
| RGB | rgb(51, 135, 87) |
| HSL | hsl(146, 45%, 36%) |
| OKLCH | oklch(55.9% 0.111 155.1) |
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 #338757 | 4.42:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #338757 | 4.74:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #338757 text on white | 4.42:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #338757 text on black | 4.74:1 | AA | Lc -31.2 | 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
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDFD1
oklch(88.6% 0.028 153.8)
-
Step 300
300
#A8CBB3
oklch(81% 0.05 155.2)
-
Step 400
400
#78B08B
oklch(70.8% 0.08 154.9)
-
Step 500
500
#529C6E
oklch(63.2% 0.102 154.9)
-
Step 600
600 (this color)
#338757
oklch(55.9% 0.111 155.1)
-
Step 700
700
#237146
oklch(49% 0.102 155.2)
-
Step 800
800
#205C3A
oklch(42.6% 0.084 155.3)
-
Step 900
900
#204C32
oklch(37.7% 0.067 155.4)
-
Step 950
950
#142C1D
oklch(26.8% 0.041 155)
#338757 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) | #877D54 | 0.099 |
| Deuteranopia (no green cones) | #7B755A | 0.096 |
| Tritanopia (no blue cones) | #12867B | 0.054 |
| Achromatopsia (no color) | #787878 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338757
#338757
oklch(55.9% 0.111 155.1)
- #9C5A8E
#9C5A8E
oklch(56.1% 0.111 335.2)
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 #338757, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.012
- Viridian #1E9167 ΔE 0.031
- Dark Sage #598556 ΔE 0.035
- Jungle Green #048243 ΔE 0.038
- Light Forest Green #4F9153 ΔE 0.042
- Fern Green #548D44 ΔE 0.043
- Military Green #667C3E ΔE 0.055
- Swamp #698339 ΔE 0.057
Use #338757 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.