#377D51
Closest named color: Jungle Green (#048243). oklch(53.2% 0.099 153.7), rgb(55, 125, 81).
Aa
White text reads best on this color (4.98:1).
About this color
#377D51 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.099 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.038 away. White text reads best on it, at 4.98:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #377D51 |
| RGB | rgb(55, 125, 81) |
| HSL | hsl(142, 39%, 35%) |
| OKLCH | oklch(53.2% 0.099 153.7) |
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 #377D51 | 4.98:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #377D51 | 4.21:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #377D51 text on white | 4.98:1 | AA | Lc 74.3 | Content text, not long reading |
| #377D51 text on black | 4.21:1 | AA large text | Lc -27.5 | 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
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CDDED2
oklch(88.4% 0.024 155.1)
-
Step 300
300
#ABCAB4
oklch(81% 0.045 154.4)
-
Step 400
400
#7EAE8C
oklch(70.7% 0.071 153.5)
-
Step 500
500
#5B9A70
oklch(63.2% 0.091 153.8)
-
Step 600
600 (this color)
#377D51
oklch(53.2% 0.099 153.7)
-
Step 700
700
#307048
oklch(49.2% 0.092 153.8)
-
Step 800
800
#295B3B
oklch(42.7% 0.076 153.6)
-
Step 900
900
#264B33
oklch(37.8% 0.06 154)
-
Step 950
950
#172C1E
oklch(27.1% 0.038 154)
#377D51 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) | #7D744E | 0.087 |
| Deuteranopia (no green cones) | #736D54 | 0.085 |
| Tritanopia (no blue cones) | #247C72 | 0.050 |
| Achromatopsia (no color) | #707070 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377D51
#377D51
oklch(53.2% 0.099 153.7)
- #8F5584
#8F5584
oklch(53.2% 0.1 334.1)
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 #377D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.038
- Sea Green #2E8B57 ΔE 0.041
- Dark Sage #598556 ΔE 0.045
- Military Green #667C3E ΔE 0.052
- Muddy Green #657432 ΔE 0.056
- Viridian #1E9167 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.059
- Dark Moss Green #606C38 ΔE 0.061
Use #377D51 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.