#537D86
Closest named color: Grey Blue (#647D8E). oklch(56.2% 0.048 212.6), rgb(83, 125, 134).
Aa
Black text reads best on this color (4.64:1).
About this color
#537D86 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.048 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.026 away. Black text reads best on it, at 4.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #537D86 |
| RGB | rgb(83, 125, 134) |
| HSL | hsl(191, 24%, 43%) |
| OKLCH | oklch(56.2% 0.048 212.6) |
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 #537D86 | 4.52:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #537D86 | 4.64:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #537D86 text on white | 4.52:1 | AA | Lc 71.3 | Content text, not long reading |
| #537D86 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D1DBDE
oklch(88.5% 0.012 217.6)
-
Step 300
300
#B1C5C9
oklch(81% 0.023 211.1)
-
Step 400
400
#88A7AD
oklch(70.7% 0.035 210.7)
-
Step 500
500
#6A9199
oklch(63.1% 0.045 211.7)
-
Step 600
600 (this color)
#537D86
oklch(56.2% 0.048 212.6)
-
Step 700
700
#426870
oklch(49.2% 0.045 212.4)
-
Step 800
800
#36555B
oklch(42.8% 0.038 211.1)
-
Step 900
900
#2F464B
oklch(37.7% 0.03 212.7)
-
Step 950
950
#1C292C
oklch(27% 0.019 213.5)
#537D86 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) | #767A87 | 0.046 |
| Deuteranopia (no green cones) | #6D7486 | 0.040 |
| Tritanopia (no blue cones) | #3F8180 | 0.026 |
| Achromatopsia (no color) | #767676 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537D86
#537D86
oklch(56.2% 0.048 212.6)
- #8F6B63
#8F6B63
oklch(56.2% 0.048 32.8)
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 #537D86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.026
- Battleship Grey #6B7C85 ΔE 0.030
- Battleship Gray #6C757D ΔE 0.036
- Metallic Blue #4F738E ΔE 0.037
- Stormy Blue #507B9C ΔE 0.037
- Steel Grey #6F828A ΔE 0.040
- Cerulean #457B9D ΔE 0.040
- Slate Gray #708090 ΔE 0.042
Use #537D86 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.