#377B5D
Closest named color: Bluegreen (#017A79). oklch(53% 0.085 162.4), rgb(55, 123, 93).
Aa
White text reads best on this color (5.05:1).
About this color
#377B5D is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.085 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.048 away. White text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #377B5D |
| RGB | rgb(55, 123, 93) |
| HSL | hsl(154, 38%, 35%) |
| OKLCH | oklch(53% 0.085 162.4) |
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 #377B5D | 5.05:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #377B5D | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #377B5D text on white | 5.05:1 | AA | Lc 74.7 | Content text, not long reading |
| #377B5D text on black | 4.15:1 | AA large text | Lc -27.0 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#ACC9B9
oklch(81% 0.038 161.3)
-
Step 400
400
#7EAD95
oklch(70.7% 0.061 162.1)
-
Step 500
500
#5B987B
oklch(63% 0.078 162.5)
-
Step 600
600 (this color)
#377B5D
oklch(53% 0.085 162.4)
-
Step 700
700
#306F53
oklch(49.2% 0.08 162.1)
-
Step 800
800
#295A44
oklch(42.6% 0.065 162.4)
-
Step 900
900
#264A39
oklch(37.6% 0.051 162.1)
-
Step 950
950
#172B22
oklch(26.9% 0.031 164)
#377B5D 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) | #79735B | 0.082 |
| Deuteranopia (no green cones) | #6F6C5F | 0.079 |
| Tritanopia (no blue cones) | #1E7B73 | 0.035 |
| Achromatopsia (no color) | #6F6F6F | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377B5D
#377B5D
oklch(53% 0.085 162.4)
- #8E5779
#8E5779
oklch(53% 0.086 342.7)
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 #377B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.048
- Dark Sage #598556 ΔE 0.051
- Teal #008080 ΔE 0.052
- Dark Aquamarine #017371 ΔE 0.052
- Sea Green #2E8B57 ΔE 0.053
- Jungle Green #048243 ΔE 0.056
- Deep Turquoise #017374 ΔE 0.056
- Deep Aqua #08787F ΔE 0.059
Use #377B5D 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.