#376F63
Closest named color: Dark Aquamarine (#017371). oklch(50% 0.063 177.9), rgb(55, 111, 99).
Aa
White text reads best on this color (5.80:1).
About this color
#376F63 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.063 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.030 away. White text reads best on it, at 5.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #376F63 |
| RGB | rgb(55, 111, 99) |
| HSL | hsl(167, 34%, 33%) |
| OKLCH | oklch(50% 0.063 177.9) |
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 #376F63 | 5.80:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #376F63 | 3.61:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #376F63 text on white | 5.80:1 | AA | Lc 78.9 | Fine for body text |
| #376F63 text on black | 3.61:1 | AA large text | Lc -22.9 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ADC7C0
oklch(80.8% 0.03 177.5)
-
Step 400
400
#80ABA0
oklch(70.7% 0.049 177.3)
-
Step 500
500
#5F9689
oklch(63.1% 0.062 177.6)
-
Step 600
600
#438073
oklch(55.5% 0.067 178.2)
-
Step 700
700 (this color)
#376F63
oklch(50% 0.063 177.9)
-
Step 800
800
#2C584F
oklch(42.6% 0.051 178.8)
-
Step 900
900
#284941
oklch(37.7% 0.041 176.6)
-
Step 950
950
#182B26
oklch(27.1% 0.027 175.7)
#376F63 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) | #6B6963 | 0.066 |
| Deuteranopia (no green cones) | #626364 | 0.062 |
| Tritanopia (no blue cones) | #1F706B | 0.019 |
| Achromatopsia (no color) | #656565 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376F63
#376F63
oklch(50% 0.063 177.9)
- #815463
#815463
oklch(50% 0.063 358)
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 #376F63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.030
- Deep Turquoise #017374 ΔE 0.033
- Dark Aqua #05696B ΔE 0.039
- Bluegreen #017A79 ΔE 0.042
- Deep Aqua #08787F ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.047
- Slate #516572 ΔE 0.054
- Teal #008080 ΔE 0.057
Use #376F63 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.