#376C63
Closest named color: Dark Aquamarine (#017371). oklch(49.2% 0.059 181.4), rgb(55, 108, 99).
Aa
White text reads best on this color (6.02:1).
About this color
#376C63 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.059 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.032 away. White text reads best on it, at 6.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #376C63 |
| RGB | rgb(55, 108, 99) |
| HSL | hsl(170, 33%, 32%) |
| OKLCH | oklch(49.2% 0.059 181.4) |
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 #376C63 | 6.02:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #376C63 | 3.48:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #376C63 text on white | 6.02:1 | AA | Lc 80.0 | Fine for body text |
| #376C63 text on black | 3.48:1 | AA large text | Lc -21.9 | 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
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#AEC7C2
oklch(80.9% 0.028 182.2)
-
Step 400
400
#82AAA2
oklch(70.6% 0.045 181.3)
-
Step 500
500
#61958C
oklch(63% 0.057 182.3)
-
Step 600
600
#468076
oklch(55.7% 0.063 181.5)
-
Step 700
700 (this color)
#376C63
oklch(49.2% 0.059 181.4)
-
Step 800
800
#2E5851
oklch(42.8% 0.049 181.9)
-
Step 900
900
#2A4843
oklch(37.6% 0.037 182.5)
-
Step 950
950
#192A27
oklch(26.9% 0.023 182.2)
#376C63 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) | #686763 | 0.063 |
| Deuteranopia (no green cones) | #5F6064 | 0.060 |
| Tritanopia (no blue cones) | #206E69 | 0.017 |
| Achromatopsia (no color) | #636363 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376C63
#376C63
oklch(49.2% 0.059 181.4)
- #7D535F
#7D535F
oklch(49.2% 0.058 0.8)
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 #376C63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.032
- Dark Aqua #05696B ΔE 0.033
- Deep Turquoise #017374 ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.040
- Bluegreen #017A79 ΔE 0.047
- Slate #516572 ΔE 0.049
- Deep Aqua #08787F ΔE 0.049
- Petrol #005F6A ΔE 0.060
Use #376C63 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.