#537166
Closest named color: Dim Gray (#696969). oklch(52.2% 0.039 170.2), rgb(83, 113, 102).
Aa
White text reads best on this color (5.35:1).
About this color
#537166 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.039 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.039 away. White text reads best on it, at 5.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.92:1 |
| White text | 5.35:1 |
Values
| HEX | #537166 |
| RGB | rgb(83, 113, 102) |
| HSL | hsl(158, 15%, 38%) |
| OKLCH | oklch(52.2% 0.039 170.2) |
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 #537166 | 5.35:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #537166 | 3.92:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #537166 text on white | 5.35:1 | AA | Lc 76.6 | Fine for body text |
| #537166 text on black | 3.92:1 | AA large text | Lc -25.1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D3DBD8
oklch(88.4% 0.01 171.8)
-
Step 300
300
#B5C5BF
oklch(80.9% 0.019 171.4)
-
Step 400
400
#8FA79E
oklch(70.7% 0.03 170.8)
-
Step 500
500
#739186
oklch(63% 0.038 170.7)
-
Step 600
600
#5B7C70
oklch(55.7% 0.042 170.3)
-
Step 700
700 (this color)
#537166
oklch(52.2% 0.039 170.2)
-
Step 800
800
#3D554C
oklch(42.7% 0.033 169.6)
-
Step 900
900
#344640
oklch(37.7% 0.025 172.5)
-
Step 950
950
#1F2925
oklch(27% 0.016 168.8)
#537166 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) | #6F6D65 | 0.040 |
| Deuteranopia (no green cones) | #6A6967 | 0.039 |
| Tritanopia (no blue cones) | #4C716E | 0.014 |
| Achromatopsia (no color) | #6B6B6B | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537166
#537166
oklch(52.2% 0.039 170.2)
- #7C606C
#7C606C
oklch(52.1% 0.04 351)
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 #537166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.039
- Slate #516572 ΔE 0.047
- Battleship Gray #6C757D ΔE 0.052
- Dark Aquamarine #017371 ΔE 0.056
- Bluegreen #017A79 ΔE 0.056
- Deep Turquoise #017374 ΔE 0.056
- Deep Aqua #08787F ΔE 0.058
- Dark Moss Green #606C38 ΔE 0.061
Use #537166 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.