#37874E
Closest named color: Sea Green (#2E8B57). oklch(55.9% 0.118 150.3), rgb(55, 135, 78).
Aa
Black text reads best on this color (4.73:1).
About this color
#37874E is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.118 and its hue 150°. 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 4.73:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #37874E |
| RGB | rgb(55, 135, 78) |
| HSL | hsl(137, 42%, 37%) |
| OKLCH | oklch(55.9% 0.118 150.3) |
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 #37874E | 4.43:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #37874E | 4.73:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #37874E text on white | 4.43:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #37874E text on black | 4.73:1 | 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
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CCDFCF
oklch(88.5% 0.03 150.1)
-
Step 300
300
#A9CBAF
oklch(80.9% 0.053 150.2)
-
Step 400
400
#7AB085
oklch(70.8% 0.085 150.1)
-
Step 500
500
#559C66
oklch(63.2% 0.108 150.1)
-
Step 600
600 (this color)
#37874E
oklch(55.9% 0.118 150.3)
-
Step 700
700
#28723E
oklch(49.2% 0.11 150.1)
-
Step 800
800
#235D33
oklch(42.8% 0.092 149.9)
-
Step 900
900
#224C2D
oklch(37.7% 0.071 150.3)
-
Step 950
950
#152D1B
oklch(27.2% 0.045 150.5)
#37874E 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) | #887C4A | 0.099 |
| Deuteranopia (no green cones) | #7D7552 | 0.096 |
| Tritanopia (no blue cones) | #228579 | 0.064 |
| Achromatopsia (no color) | #787878 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37874E
#37874E
oklch(55.9% 0.118 150.3)
- #9A5994
#9A5994
oklch(55.9% 0.116 330.4)
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 #37874E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.014
- Jungle Green #048243 ΔE 0.033
- Fern Green #548D44 ΔE 0.036
- Viridian #1E9167 ΔE 0.037
- Dark Sage #598556 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.039
- Swamp #698339 ΔE 0.051
- Moss Green #658B38 ΔE 0.052
Use #37874E 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.