#37766E
Closest named color: Bluegreen (#017A79). oklch(52.2% 0.066 184.5), rgb(55, 118, 110).
Aa
White text reads best on this color (5.27:1).
About this color
#37766E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.066 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.026 away. White text reads best on it, at 5.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.97:1 |
| White text | 5.27:1 |
Values
| HEX | #37766E |
| RGB | rgb(55, 118, 110) |
| HSL | hsl(172, 36%, 34%) |
| OKLCH | oklch(52.2% 0.066 184.5) |
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 #37766E | 5.27:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #37766E | 3.97:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #37766E text on white | 5.27:1 | AA | Lc 76.1 | Fine for body text |
| #37766E text on black | 3.97:1 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CDDDDA
oklch(88.5% 0.018 183.5)
-
Step 300
300
#ABC8C3
oklch(81% 0.032 184)
-
Step 400
400
#7CABA4
oklch(70.6% 0.051 184.7)
-
Step 500
500
#59978E
oklch(63.2% 0.066 183.9)
-
Step 600
600
#3C8178
oklch(55.6% 0.071 184.1)
-
Step 700
700 (this color)
#37766E
oklch(52.2% 0.066 184.5)
-
Step 800
800
#275953
oklch(42.8% 0.055 185)
-
Step 900
900
#254944
oklch(37.7% 0.043 184.1)
-
Step 950
950
#162B28
oklch(27% 0.028 184.2)
#37766E 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) | #71706E | 0.071 |
| Deuteranopia (no green cones) | #67696F | 0.066 |
| Tritanopia (no blue cones) | #127873 | 0.021 |
| Achromatopsia (no color) | #6C6C6C | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37766E
#37766E
oklch(52.2% 0.066 184.5)
- #8A5965
#8A5965
oklch(52.1% 0.066 3.7)
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 #37766E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.026
- Dark Aquamarine #017371 ΔE 0.030
- Deep Turquoise #017374 ΔE 0.031
- Deep Aqua #08787F ΔE 0.031
- Teal #008080 ΔE 0.037
- Dark Aqua #05696B ΔE 0.053
- Ocean #017B92 ΔE 0.056
- Slate #516572 ΔE 0.059
Use #37766E 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.