#537A7E
Closest named color: Battleship Gray (#6C757D). oklch(55.2% 0.044 204), rgb(83, 122, 126).
Aa
White text reads best on this color (4.71:1).
About this color
#537A7E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.044 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.034 away. White text reads best on it, at 4.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #537A7E |
| RGB | rgb(83, 122, 126) |
| HSL | hsl(186, 21%, 41%) |
| OKLCH | oklch(55.2% 0.044 204) |
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 #537A7E | 4.71:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #537A7E | 4.45:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #537A7E text on white | 4.71:1 | AA | Lc 72.7 | Content text, not long reading |
| #537A7E text on black | 4.45:1 | AA large text | Lc -29.0 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D1DBDC
oklch(88.4% 0.011 204.1)
-
Step 300
300
#B3C5C6
oklch(81% 0.02 200.8)
-
Step 400
400
#8AA7AA
oklch(70.7% 0.032 204.2)
-
Step 500
500
#6D9195
oklch(63.1% 0.04 204.7)
-
Step 600
600 (this color)
#537A7E
oklch(55.2% 0.044 204)
-
Step 700
700
#44686B
oklch(49.1% 0.041 202.5)
-
Step 800
800
#385558
oklch(42.8% 0.035 204.1)
-
Step 900
900
#314648
oklch(37.7% 0.026 203.5)
-
Step 950
950
#1D292A
oklch(27% 0.017 202.6)
#537A7E 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) | #74777E | 0.044 |
| Deuteranopia (no green cones) | #6D717E | 0.041 |
| Tritanopia (no blue cones) | #437D7B | 0.020 |
| Achromatopsia (no color) | #737373 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537A7E
#537A7E
oklch(55.2% 0.044 204)
- #8A6866
#8A6866
oklch(55.1% 0.044 22.5)
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 #537A7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.034
- Battleship Grey #6B7C85 ΔE 0.034
- Grey Blue #647D8E ΔE 0.035
- Metallic Blue #4F738E ΔE 0.038
- Stormy Blue #507B9C ΔE 0.047
- Steel Grey #6F828A ΔE 0.048
- Cerulean #457B9D ΔE 0.049
- Teal #008080 ΔE 0.051
Use #537A7E 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.