#337A57
Closest named color: Jungle Green (#048243). oklch(52.4% 0.091 159.3), rgb(51, 122, 87).
Aa
White text reads best on this color (5.16:1).
About this color
#337A57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.091 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.048 away. White text reads best on it, at 5.16:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.06:1 |
| White text | 5.16:1 |
Values
| HEX | #337A57 |
| RGB | rgb(51, 122, 87) |
| HSL | hsl(150, 41%, 34%) |
| OKLCH | oklch(52.4% 0.091 159.3) |
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 #337A57 | 5.16:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #337A57 | 4.06:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #337A57 text on white | 5.16:1 | AA | Lc 75.4 | Fine for body text |
| #337A57 text on black | 4.06:1 | AA large text | Lc -26.3 | Dividers and decoration only |
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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CDDED4
oklch(88.5% 0.023 160.2)
-
Step 300
300
#ABC9B7
oklch(80.9% 0.041 159)
-
Step 400
400
#7DAE92
oklch(70.8% 0.066 159.1)
-
Step 500
500
#5A9977
oklch(63.1% 0.084 159.2)
-
Step 600
600 (this color)
#337A57
oklch(52.4% 0.091 159.3)
-
Step 700
700
#2F6F4F
oklch(49% 0.084 159.2)
-
Step 800
800
#285B41
oklch(42.8% 0.071 159.1)
-
Step 900
900
#254A37
oklch(37.5% 0.054 159.8)
-
Step 950
950
#172C20
oklch(27.1% 0.035 157.9)
#337A57 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) | #797155 | 0.086 |
| Deuteranopia (no green cones) | #6F6A59 | 0.084 |
| Tritanopia (no blue cones) | #197971 | 0.042 |
| Achromatopsia (no color) | #6D6D6D | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337A57
#337A57
oklch(52.4% 0.091 159.3)
- #8D547B
#8D547B
oklch(52.4% 0.092 339.7)
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 #337A57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.048
- Sea Green #2E8B57 ΔE 0.053
- Bluegreen #017A79 ΔE 0.053
- Dark Sage #598556 ΔE 0.054
- Dark Aquamarine #017371 ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.059
- Teal #008080 ΔE 0.059
- Deep Turquoise #017374 ΔE 0.059
Use #337A57 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.