#537F7B
Closest named color: Battleship Grey (#6B7C85). oklch(56.3% 0.049 188.7), rgb(83, 127, 123).
Aa
Black text reads best on this color (4.68:1).
About this color
#537F7B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.049 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.037 away. Black text reads best on it, at 4.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.68:1 |
| White text | 4.47:1 |
Values
| HEX | #537F7B |
| RGB | rgb(83, 127, 123) |
| HSL | hsl(175, 21%, 41%) |
| OKLCH | oklch(56.3% 0.049 188.7) |
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 #537F7B | 4.47:1 | AA large text | Lc -76.5 | Fine for body text |
| Black text on #537F7B | 4.68:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #537F7B text on white | 4.47:1 | AA large text | Lc 71.0 | Content text, not long reading |
| #537F7B text on black | 4.68:1 | AA | Lc -30.6 | 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
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D1DCDB
oklch(88.6% 0.012 190.4)
-
Step 300
300
#B1C5C3
oklch(80.8% 0.022 189.5)
-
Step 400
400
#88A8A5
oklch(70.7% 0.035 189.4)
-
Step 500
500
#6A938F
oklch(63.2% 0.045 188.5)
-
Step 600
600 (this color)
#537F7B
oklch(56.3% 0.049 188.7)
-
Step 700
700
#416966
oklch(49% 0.045 189.8)
-
Step 800
800
#365653
oklch(42.7% 0.038 188.4)
-
Step 900
900
#2F4745
oklch(37.8% 0.03 189.4)
-
Step 950
950
#1C2928
oklch(26.9% 0.018 190.2)
#537F7B 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) | #7A7B7B | 0.051 |
| Deuteranopia (no green cones) | #72757C | 0.048 |
| Tritanopia (no blue cones) | #43817E | 0.016 |
| Achromatopsia (no color) | #777777 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537F7B
#537F7B
oklch(56.3% 0.049 188.7)
- #8F6A6F
#8F6A6F
oklch(56.3% 0.048 9.7)
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 #537F7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.037
- Grey Blue #647D8E ΔE 0.040
- Battleship Gray #6C757D ΔE 0.042
- Steel Grey #6F828A ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.048
- Teal #008080 ΔE 0.049
- Slate Gray #708090 ΔE 0.052
- Dark Cyan #008B8B ΔE 0.052
Use #537F7B 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.