#377B64
Closest named color: Bluegreen (#017A79). oklch(53.2% 0.079 168.5), rgb(55, 123, 100).
Aa
White text reads best on this color (5.02:1).
About this color
#377B64 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.079 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.039 away. White text reads best on it, at 5.02:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.17:1 |
| White text | 5.02:1 |
Values
| HEX | #377B64 |
| RGB | rgb(55, 123, 100) |
| HSL | hsl(160, 38%, 35%) |
| OKLCH | oklch(53.2% 0.079 168.5) |
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 #377B64 | 5.02:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #377B64 | 4.17:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #377B64 text on white | 5.02:1 | AA | Lc 74.5 | Content text, not long reading |
| #377B64 text on black | 4.17:1 | AA large text | Lc -27.2 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED7
oklch(88.6% 0.021 169.3)
-
Step 300
300
#ABC8BC
oklch(80.8% 0.035 168.5)
-
Step 400
400
#7EAC9A
oklch(70.6% 0.056 168.6)
-
Step 500
500
#5B9881
oklch(63.1% 0.073 168)
-
Step 600
600 (this color)
#377B64
oklch(53.2% 0.079 168.5)
-
Step 700
700
#306E59
oklch(49.1% 0.073 168.5)
-
Step 800
800
#295A49
oklch(42.8% 0.061 168.4)
-
Step 900
900
#264A3D
oklch(37.8% 0.048 168.4)
-
Step 950
950
#172B24
oklch(26.9% 0.029 169.8)
#377B64 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) | #787363 | 0.080 |
| Deuteranopia (no green cones) | #6E6C66 | 0.077 |
| Tritanopia (no blue cones) | #197C74 | 0.027 |
| Achromatopsia (no color) | #6F6F6F | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377B64
#377B64
oklch(53.2% 0.079 168.5)
- #8E5974
#8E5974
oklch(53.1% 0.079 348.2)
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 #377B64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.039
- Teal #008080 ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.049
- Deep Aqua #08787F ΔE 0.050
- Dark Sage #598556 ΔE 0.055
- Sea Green #2E8B57 ΔE 0.059
- Dark Cyan #008B8B ΔE 0.063
Use #377B64 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.