#537F71
Closest named color: Battleship Grey (#6B7C85). oklch(56% 0.053 172.3), rgb(83, 127, 113).
Aa
Black text reads best on this color (4.64:1).
About this color
#537F71 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.053 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.048 away. Black text reads best on it, at 4.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #537F71 |
| RGB | rgb(83, 127, 113) |
| HSL | hsl(161, 21%, 41%) |
| OKLCH | oklch(56% 0.053 172.3) |
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 #537F71 | 4.52:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #537F71 | 4.64:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #537F71 text on white | 4.52:1 | AA | Lc 71.4 | Content text, not long reading |
| #537F71 text on black | 4.64:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D1DCD8
oklch(88.5% 0.013 172.3)
-
Step 300
300
#B2C6BF
oklch(80.9% 0.024 172.7)
-
Step 400
400
#89A99E
oklch(70.8% 0.039 172.3)
-
Step 500
500
#6B9486
oklch(63.2% 0.05 171.5)
-
Step 600
600 (this color)
#537F71
oklch(56% 0.053 172.3)
-
Step 700
700
#426A5E
oklch(49.1% 0.049 173.2)
-
Step 800
800
#37574C
oklch(42.8% 0.042 170.6)
-
Step 900
900
#304740
oklch(37.6% 0.031 173.7)
-
Step 950
950
#1C2A25
oklch(27% 0.021 170.6)
#537F71 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) | #7C7A70 | 0.055 |
| Deuteranopia (no green cones) | #757472 | 0.053 |
| Tritanopia (no blue cones) | #47807B | 0.017 |
| Achromatopsia (no color) | #767676 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537F71
#537F71
oklch(56% 0.053 172.3)
- #8E6878
#8E6878
oklch(56.1% 0.053 351.9)
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 #537F71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.048
- Dark Sage #598556 ΔE 0.049
- Dusty Teal #4C9085 ΔE 0.050
- Teal #008080 ΔE 0.051
- Battleship Gray #6C757D ΔE 0.051
- Slate Green #658D6D ΔE 0.051
- Grey Blue #647D8E ΔE 0.054
- Steel Grey #6F828A ΔE 0.055
Use #537F71 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.