#377E6D
Closest named color: Teal (#008080). oklch(54.3% 0.077 175.3), rgb(55, 126, 109).
Aa
White text reads best on this color (4.80:1).
About this color
#377E6D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.077 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.033 away. White text reads best on it, at 4.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.36:1 |
| White text | 4.80:1 |
Values
| HEX | #377E6D |
| RGB | rgb(55, 126, 109) |
| HSL | hsl(166, 39%, 35%) |
| OKLCH | oklch(54.3% 0.077 175.3) |
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 #377E6D | 4.80:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #377E6D | 4.36:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #377E6D text on white | 4.80:1 | AA | Lc 73.2 | Content text, not long reading |
| #377E6D text on black | 4.36:1 | AA large text | Lc -28.5 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDDD8
oklch(88.4% 0.018 175.3)
-
Step 300
300
#AAC8BF
oklch(80.8% 0.035 175.4)
-
Step 400
400
#7CAC9F
oklch(70.6% 0.055 176)
-
Step 500
500
#599887
oklch(63.2% 0.071 174.7)
-
Step 600
600 (this color)
#377E6D
oklch(54.3% 0.077 175.3)
-
Step 700
700
#2D6E5F
oklch(49.2% 0.071 175.7)
-
Step 800
800
#275A4D
oklch(42.8% 0.059 174.3)
-
Step 900
900
#254A40
oklch(37.8% 0.046 174.2)
-
Step 950
950
#162B26
oklch(27% 0.029 177.1)
#377E6D 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) | #7A776C | 0.080 |
| Deuteranopia (no green cones) | #6F6F6E | 0.076 |
| Tritanopia (no blue cones) | #0F7F79 | 0.024 |
| Achromatopsia (no color) | #727272 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377E6D
#377E6D
oklch(54.3% 0.077 175.3)
- #935C71
#935C71
oklch(54.2% 0.077 355.5)
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 #377E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.033
- Bluegreen #017A79 ΔE 0.035
- Deep Aqua #08787F ΔE 0.044
- Dark Aquamarine #017371 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.049
- Dark Cyan #008B8B ΔE 0.050
- Dark Sage #598556 ΔE 0.055
- Sea Green #2E8B57 ΔE 0.060
Use #377E6D 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.