#537573
Closest named color: Battleship Gray (#6C757D). oklch(53.6% 0.039 191.5), rgb(83, 117, 115).
Aa
White text reads best on this color (5.04:1).
About this color
#537573 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.039 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.039 away. White text reads best on it, at 5.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.15:1 |
| White text | 5.04:1 |
Values
| HEX | #537573 |
| RGB | rgb(83, 117, 115) |
| HSL | hsl(176, 17%, 39%) |
| OKLCH | oklch(53.6% 0.039 191.5) |
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 #537573 | 5.04:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #537573 | 4.15:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #537573 text on white | 5.04:1 | AA | Lc 74.8 | Content text, not long reading |
| #537573 text on black | 4.15:1 | AA large text | Lc -26.9 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D2DBDB
oklch(88.5% 0.01 197)
-
Step 300
300
#B4C4C3
oklch(80.8% 0.018 192.3)
-
Step 400
400
#8DA6A5
oklch(70.6% 0.028 193.6)
-
Step 500
500
#71918F
oklch(63.2% 0.036 191.5)
-
Step 600
600 (this color)
#537573
oklch(53.6% 0.039 191.5)
-
Step 700
700
#496866
oklch(49.3% 0.036 191)
-
Step 800
800
#3C5453
oklch(42.6% 0.029 192.9)
-
Step 900
900
#334645
oklch(37.8% 0.024 192.1)
-
Step 950
950
#1E2928
oklch(27% 0.015 189.4)
#537573 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) | #717273 | 0.041 |
| Deuteranopia (no green cones) | #6B6D73 | 0.038 |
| Tritanopia (no blue cones) | #487774 | 0.013 |
| Achromatopsia (no color) | #6F6F6F | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537573
#537573
oklch(53.6% 0.039 191.5)
- #826468
#826468
oklch(53.5% 0.039 9.5)
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 #537573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.039
- Dim Gray #696969 ΔE 0.042
- Metallic Blue #4F738E ΔE 0.045
- Battleship Grey #6B7C85 ΔE 0.047
- Slate #516572 ΔE 0.049
- Grey Blue #647D8E ΔE 0.051
- Deep Aqua #08787F ΔE 0.051
- Bluegreen #017A79 ΔE 0.052
Use #537573 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.