#377577
Closest named color: Deep Aqua (#08787F). oklch(52.2% 0.064 198.2), rgb(55, 117, 119).
Aa
White text reads best on this color (5.28:1).
About this color
#377577 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.064 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.024 away. White text reads best on it, at 5.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #377577 |
| RGB | rgb(55, 117, 119) |
| HSL | hsl(182, 37%, 34%) |
| OKLCH | oklch(52.2% 0.064 198.2) |
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 #377577 | 5.28:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #377577 | 3.97:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #377577 text on white | 5.28:1 | AA | Lc 76.1 | Fine for body text |
| #377577 text on black | 3.97:1 | AA large text | Lc -25.6 | 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
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#AAC7C8
oklch(80.9% 0.031 199.1)
-
Step 400
400
#7CAAAC
oklch(70.6% 0.049 199.5)
-
Step 500
500
#599597
oklch(63% 0.063 198.4)
-
Step 600
600
#3C8082
oklch(55.7% 0.069 197.9)
-
Step 700
700 (this color)
#377577
oklch(52.2% 0.064 198.2)
-
Step 800
800
#275859
oklch(42.7% 0.053 197.2)
-
Step 900
900
#25484A
oklch(37.6% 0.041 200.4)
-
Step 950
950
#162A2B
oklch(26.9% 0.026 199.8)
#377577 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) | #6E7077 | 0.066 |
| Deuteranopia (no green cones) | #636877 | 0.061 |
| Tritanopia (no blue cones) | #047975 | 0.027 |
| Achromatopsia (no color) | #6C6C6C | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377577
#377577
oklch(52.2% 0.064 198.2)
- #8B5B5C
#8B5B5C
oklch(52.4% 0.063 18.1)
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 #377577, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.024
- Bluegreen #017A79 ΔE 0.026
- Deep Turquoise #017374 ΔE 0.029
- Dark Aquamarine #017371 ΔE 0.031
- Teal #008080 ΔE 0.036
- Ocean #017B92 ΔE 0.044
- Metallic Blue #4F738E ΔE 0.049
- Slate #516572 ΔE 0.051
Use #377577 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.