#537C74
Closest named color: Battleship Grey (#6B7C85). oklch(55.4% 0.047 180.9), rgb(83, 124, 116).
Aa
White text reads best on this color (4.66:1).
About this color
#537C74 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.047 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.043 away. White text reads best on it, at 4.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #537C74 |
| RGB | rgb(83, 124, 116) |
| HSL | hsl(168, 20%, 41%) |
| OKLCH | oklch(55.4% 0.047 180.9) |
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 #537C74 | 4.66:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #537C74 | 4.50:1 | AA | Lc 31.7 | Non-text elements, placeholder text |
| #537C74 text on white | 4.66:1 | AA | Lc 72.3 | Content text, not long reading |
| #537C74 text on black | 4.50:1 | AA | Lc -29.3 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D1DCD9
oklch(88.5% 0.013 178)
-
Step 300
300
#B3C5C1
oklch(80.9% 0.02 181)
-
Step 400
400
#8AA8A2
oklch(70.7% 0.034 181.8)
-
Step 500
500
#6C938B
oklch(63.2% 0.045 180.7)
-
Step 600
600 (this color)
#537C74
oklch(55.4% 0.047 180.9)
-
Step 700
700
#446962
oklch(49.1% 0.044 181.2)
-
Step 800
800
#385650
oklch(42.8% 0.037 180.5)
-
Step 900
900
#314742
oklch(37.8% 0.029 179)
-
Step 950
950
#1D2927
oklch(26.9% 0.017 183.7)
#537C74 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) | #797774 | 0.052 |
| Deuteranopia (no green cones) | #717275 | 0.048 |
| Tritanopia (no blue cones) | #467D79 | 0.014 |
| Achromatopsia (no color) | #747474 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537C74
#537C74
oklch(55.4% 0.047 180.9)
- #8B6771
#8B6771
oklch(55.3% 0.048 0.5)
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 #537C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.043
- Battleship Gray #6C757D ΔE 0.043
- Grey Blue #647D8E ΔE 0.048
- Teal #008080 ΔE 0.049
- Steel Grey #6F828A ΔE 0.053
- Bluegreen #017A79 ΔE 0.053
- Deep Aqua #08787F ΔE 0.056
- Metallic Blue #4F738E ΔE 0.057
Use #537C74 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.