#377374
Closest named color: Deep Aqua (#08787F). oklch(51.6% 0.062 196.8), rgb(55, 115, 116).
Aa
White text reads best on this color (5.43:1).
About this color
#377374 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.062 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.027 away. White text reads best on it, at 5.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #377374 |
| RGB | rgb(55, 115, 116) |
| HSL | hsl(181, 36%, 34%) |
| OKLCH | oklch(51.6% 0.062 196.8) |
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 #377374 | 5.43:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #377374 | 3.86:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #377374 text on white | 5.43:1 | AA | Lc 76.9 | Fine for body text |
| #377374 text on black | 3.86:1 | AA large text | Lc -24.8 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C7
oklch(80.9% 0.03 196.6)
-
Step 400
400
#7DAAAB
oklch(70.6% 0.048 197.8)
-
Step 500
500
#5A9596
oklch(63% 0.062 197.1)
-
Step 600
600
#3E8081
oklch(55.7% 0.067 196.7)
-
Step 700
700 (this color)
#377374
oklch(51.6% 0.062 196.8)
-
Step 800
800
#285859
oklch(42.8% 0.052 197.2)
-
Step 900
900
#264849
oklch(37.6% 0.04 198.1)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#377374 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) | #6C6E74 | 0.064 |
| Deuteranopia (no green cones) | #626774 | 0.059 |
| Tritanopia (no blue cones) | #0C7673 | 0.024 |
| Achromatopsia (no color) | #6A6A6A | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377374
#377374
oklch(51.6% 0.062 196.8)
- #88595B
#88595B
oklch(51.6% 0.062 16.7)
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 #377374, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.027
- Deep Turquoise #017374 ΔE 0.027
- Dark Aquamarine #017371 ΔE 0.028
- Bluegreen #017A79 ΔE 0.029
- Teal #008080 ΔE 0.041
- Dark Aqua #05696B ΔE 0.046
- Slate #516572 ΔE 0.048
- Ocean #017B92 ΔE 0.048
Use #377374 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.