#377C64
Closest named color: Bluegreen (#017A79). oklch(53.5% 0.08 167.9), rgb(55, 124, 100).
Aa
White text reads best on this color (4.96:1).
About this color
#377C64 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.080 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.040 away. White text reads best on it, at 4.96:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.22:1 |
| White text | 4.96:1 |
Values
| HEX | #377C64 |
| RGB | rgb(55, 124, 100) |
| HSL | hsl(159, 39%, 35%) |
| OKLCH | oklch(53.5% 0.08 167.9) |
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 #377C64 | 4.96:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #377C64 | 4.22:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #377C64 text on white | 4.96:1 | AA | Lc 74.2 | Content text, not long reading |
| #377C64 text on black | 4.22:1 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#ABC8BC
oklch(80.8% 0.035 168.5)
-
Step 400
400
#7DAD9A
oklch(70.8% 0.058 168.2)
-
Step 500
500
#5A9881
oklch(63.1% 0.074 168.2)
-
Step 600
600 (this color)
#377C64
oklch(53.5% 0.08 167.9)
-
Step 700
700
#2F6E58
oklch(49% 0.075 167.7)
-
Step 800
800
#285A48
oklch(42.7% 0.062 167.4)
-
Step 900
900
#264A3D
oklch(37.8% 0.048 168.4)
-
Step 950
950
#172B23
oklch(26.9% 0.03 166.8)
#377C64 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) | #797463 | 0.081 |
| Deuteranopia (no green cones) | #6F6D66 | 0.078 |
| Tritanopia (no blue cones) | #197D75 | 0.028 |
| Achromatopsia (no color) | #707070 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377C64
#377C64
oklch(53.5% 0.08 167.9)
- #8F5975
#8F5975
oklch(53.3% 0.08 347.8)
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 #377C64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.040
- Teal #008080 ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.051
- Deep Aqua #08787F ΔE 0.051
- Dark Sage #598556 ΔE 0.052
- Sea Green #2E8B57 ΔE 0.056
- Dark Cyan #008B8B ΔE 0.062
Use #377C64 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.