#377579
Closest named color: Deep Aqua (#08787F). oklch(52.3% 0.064 201), rgb(55, 117, 121).
Aa
White text reads best on this color (5.27:1).
About this color
#377579 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.064 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.023 away. White text reads best on it, at 5.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #377579 |
| RGB | rgb(55, 117, 121) |
| HSL | hsl(184, 37%, 35%) |
| OKLCH | oklch(52.3% 0.064 201) |
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 #377579 | 5.27:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #377579 | 3.98:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #377579 text on white | 5.27:1 | AA | Lc 76.0 | Fine for body text |
| #377579 text on black | 3.98:1 | AA large text | Lc -25.7 | 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
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDE
oklch(88.6% 0.017 201.4)
-
Step 300
300
#AAC7C9
oklch(80.9% 0.031 201.7)
-
Step 400
400
#7CAAAD
oklch(70.6% 0.049 201.2)
-
Step 500
500
#599599
oklch(63.1% 0.063 201.2)
-
Step 600
600
#3B7F84
oklch(55.5% 0.069 201.8)
-
Step 700
700 (this color)
#377579
oklch(52.3% 0.064 201)
-
Step 800
800
#27585B
oklch(42.8% 0.053 200.7)
-
Step 900
900
#25484B
oklch(37.7% 0.041 202.8)
-
Step 950
950
#162A2C
oklch(26.9% 0.026 203.9)
#377579 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) | #6D7079 | 0.065 |
| Deuteranopia (no green cones) | #636879 | 0.061 |
| Tritanopia (no blue cones) | #007976 | 0.028 |
| Achromatopsia (no color) | #6C6C6C | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377579
#377579
oklch(52.3% 0.064 201)
- #8B5B5A
#8B5B5A
oklch(52.3% 0.064 20.8)
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 #377579, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.023
- Bluegreen #017A79 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.030
- Dark Aquamarine #017371 ΔE 0.032
- Teal #008080 ΔE 0.036
- Ocean #017B92 ΔE 0.041
- Metallic Blue #4F738E ΔE 0.046
- Sea Blue #047495 ΔE 0.050
Use #377579 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.