#376E6B
Closest named color: Dark Aquamarine (#017371). oklch(50% 0.059 190.8), rgb(55, 110, 107).
Aa
White text reads best on this color (5.82:1).
About this color
#376E6B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.059 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.028 away. White text reads best on it, at 5.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #376E6B |
| RGB | rgb(55, 110, 107) |
| HSL | hsl(177, 33%, 32%) |
| OKLCH | oklch(50% 0.059 190.8) |
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 #376E6B | 5.82:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #376E6B | 3.60:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #376E6B text on white | 5.82:1 | AA | Lc 79.0 | Fine for body text |
| #376E6B text on black | 3.60:1 | AA large text | Lc -22.8 | 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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDB
oklch(88.6% 0.016 187.3)
-
Step 300
300
#ADC7C5
oklch(81% 0.028 190.9)
-
Step 400
400
#80AAA7
oklch(70.7% 0.045 190.7)
-
Step 500
500
#5F9592
oklch(63.1% 0.057 191.3)
-
Step 600
600
#437F7C
oklch(55.5% 0.063 191.3)
-
Step 700
700 (this color)
#376E6B
oklch(50% 0.059 190.8)
-
Step 800
800
#2C5855
oklch(42.8% 0.049 189.7)
-
Step 900
900
#284846
oklch(37.6% 0.038 190.5)
-
Step 950
950
#182A29
oklch(26.9% 0.024 191.4)
#376E6B 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) | #68696B | 0.061 |
| Deuteranopia (no green cones) | #5F626C | 0.059 |
| Tritanopia (no blue cones) | #19716D | 0.020 |
| Achromatopsia (no color) | #656565 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376E6B
#376E6B
oklch(50% 0.059 190.8)
- #81555B
#81555B
oklch(50% 0.059 10.5)
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 #376E6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.028
- Deep Turquoise #017374 ΔE 0.028
- Dark Aqua #05696B ΔE 0.035
- Deep Aqua #08787F ΔE 0.039
- Bluegreen #017A79 ΔE 0.040
- Slate #516572 ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.049
- Teal #008080 ΔE 0.055
Use #376E6B 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.