#37873D
Closest named color: Sea Green (#2E8B57). oklch(55.6% 0.134 144.8), rgb(55, 135, 61).
Aa
Black text reads best on this color (4.69:1).
About this color
#37873D is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.134 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.030 away. Black text reads best on it, at 4.69:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #37873D |
| RGB | rgb(55, 135, 61) |
| HSL | hsl(125, 42%, 37%) |
| OKLCH | oklch(55.6% 0.134 144.8) |
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 #37873D | 4.47:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #37873D | 4.69:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #37873D text on white | 4.47:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #37873D text on black | 4.69:1 | AA | Lc -30.9 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CCDFCC
oklch(88.4% 0.033 145.3)
-
Step 300
300
#A9CBA9
oklch(80.8% 0.06 145)
-
Step 400
400
#7AB17B
oklch(70.8% 0.097 144.9)
-
Step 500
500
#559D58
oklch(63.1% 0.124 144.8)
-
Step 600
600 (this color)
#37873D
oklch(55.6% 0.134 144.8)
-
Step 700
700
#29722F
oklch(49% 0.124 144.8)
-
Step 800
800
#235D28
oklch(42.6% 0.103 145)
-
Step 900
900
#234C25
oklch(37.6% 0.079 144.7)
-
Step 950
950
#152D16
oklch(27% 0.051 144.9)
#37873D 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) | #897B36 | 0.101 |
| Deuteranopia (no green cones) | #7F7442 | 0.101 |
| Tritanopia (no blue cones) | #288476 | 0.082 |
| Achromatopsia (no color) | #777777 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37873D
#37873D
oklch(55.6% 0.134 144.8)
- #9A549E
#9A549E
oklch(55.6% 0.135 325.2)
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 #37873D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.030
- Jungle Green #048243 ΔE 0.030
- Forest Green #228B22 ΔE 0.035
- Fern Green #548D44 ΔE 0.036
- Dark Grass Green #388004 ΔE 0.040
- Tree Green #2A7E19 ΔE 0.041
- Kelley Green #009337 ΔE 0.042
- Light Forest Green #4F9153 ΔE 0.045
Use #37873D 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.