#537771
Closest named color: Battleship Gray (#6C757D). oklch(54% 0.042 183.2), rgb(83, 119, 113).
Aa
White text reads best on this color (4.94:1).
About this color
#537771 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.042 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.041 away. White text reads best on it, at 4.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #537771 |
| RGB | rgb(83, 119, 113) |
| HSL | hsl(170, 18%, 40%) |
| OKLCH | oklch(54% 0.042 183.2) |
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 #537771 | 4.94:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #537771 | 4.24:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #537771 text on white | 4.94:1 | AA | Lc 74.2 | Content text, not long reading |
| #537771 text on black | 4.24:1 | AA large text | Lc -27.5 | 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 600.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DBDA
oklch(88.4% 0.01 189)
-
Step 300
300
#B4C5C2
oklch(81% 0.019 184.1)
-
Step 400
400
#8DA7A2
oklch(70.7% 0.03 182.5)
-
Step 500
500
#70918C
oklch(63% 0.038 184.9)
-
Step 600
600 (this color)
#537771
oklch(54% 0.042 183.2)
-
Step 700
700
#476863
oklch(49% 0.039 184.3)
-
Step 800
800
#3B5551
oklch(42.7% 0.032 184.3)
-
Step 900
900
#334643
oklch(37.7% 0.025 184.3)
-
Step 950
950
#1E2927
oklch(27% 0.016 182.8)
#537771 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) | #747371 | 0.045 |
| Deuteranopia (no green cones) | #6D6E72 | 0.043 |
| Tritanopia (no blue cones) | #487875 | 0.012 |
| Achromatopsia (no color) | #707070 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537771
#537771
oklch(54% 0.042 183.2)
- #84656C
#84656C
oklch(54% 0.041 3.5)
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 #537771, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.041
- Dim Gray #696969 ΔE 0.046
- Battleship Grey #6B7C85 ΔE 0.047
- Bluegreen #017A79 ΔE 0.051
- Metallic Blue #4F738E ΔE 0.051
- Grey Blue #647D8E ΔE 0.052
- Teal #008080 ΔE 0.052
- Deep Aqua #08787F ΔE 0.053
Use #537771 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.