#337A5A
Closest named color: Bluegreen (#017A79). oklch(52.5% 0.088 161.5), rgb(51, 122, 90).
Aa
White text reads best on this color (5.15:1).
About this color
#337A5A is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.088 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.049 away. White text reads best on it, at 5.15:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #337A5A |
| RGB | rgb(51, 122, 90) |
| HSL | hsl(153, 41%, 34%) |
| OKLCH | oklch(52.5% 0.088 161.5) |
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 #337A5A | 5.15:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #337A5A | 4.07:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #337A5A text on white | 5.15:1 | AA | Lc 75.3 | Fine for body text |
| #337A5A text on black | 4.07:1 | AA large text | Lc -26.4 | 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
#ABC9B9
oklch(80.9% 0.039 162.2)
-
Step 400
400
#7DAD94
oklch(70.6% 0.063 161.5)
-
Step 500
500
#5A997A
oklch(63.1% 0.081 161.5)
-
Step 600
600 (this color)
#337A5A
oklch(52.5% 0.088 161.5)
-
Step 700
700
#2E6F52
oklch(49.1% 0.082 161.8)
-
Step 800
800
#285A43
oklch(42.6% 0.067 161.7)
-
Step 900
900
#254A39
oklch(37.6% 0.052 162.6)
-
Step 950
950
#172C21
oklch(27.1% 0.034 160.1)
#337A5A 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) | #787258 | 0.084 |
| Deuteranopia (no green cones) | #6E6A5C | 0.082 |
| Tritanopia (no blue cones) | #177A71 | 0.036 |
| Achromatopsia (no color) | #6D6D6D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337A5A
#337A5A
oklch(52.5% 0.088 161.5)
- #8D5579
#8D5579
oklch(52.5% 0.089 341.6)
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 #337A5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.049
- Dark Aquamarine #017371 ΔE 0.052
- Jungle Green #048243 ΔE 0.052
- Sea Green #2E8B57 ΔE 0.055
- Dark Sage #598556 ΔE 0.055
- Teal #008080 ΔE 0.055
- Deep Turquoise #017374 ΔE 0.056
- Deep Aqua #08787F ΔE 0.061
Use #337A5A 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.